diff --git a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Activity.java b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Activity.java
index b031243e..de3d1a93 100644
--- a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Activity.java
+++ b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Activity.java
@@ -36,7 +36,6 @@ public class Apple2Activity extends Activity {
 
     private final static String TAG = "Apple2Activity";
     private final static int BUF_SZ = 4096;
-    private final static String PREFS_CONFIGURED = "prefs_configured";
     private final static int SOFTKEYBOARD_THRESHOLD = 50;
     private final static int MAX_FINGERS = 32;// HACK ...
 
@@ -76,8 +75,6 @@ public class Apple2Activity extends Activity {
     public native void nativeReboot();
     public native void nativeRender();
 
-    public native void nativeEnableTouchJoystick(boolean visibility);
-    public native void nativeSetColor(int color);
     public native void nativeChooseDisk(String path, boolean driveA, boolean readOnly);
 
 
@@ -96,8 +93,7 @@ public class Apple2Activity extends Activity {
             System.exit(1);
         }
 
-        SharedPreferences settings = getPreferences(Context.MODE_PRIVATE);
-        if (settings.getBoolean(PREFS_CONFIGURED, false)) {
+        if (Apple2Preferences.PREFS_CONFIGURED.booleanValue(this)) {
             return dataDir;
         }
 
@@ -118,9 +114,7 @@ public class Apple2Activity extends Activity {
         }
 
         Log.d(TAG, "Saving default preferences");
-        SharedPreferences.Editor editor = settings.edit();
-        editor.putBoolean(PREFS_CONFIGURED, true);
-        editor.apply();
+        Apple2Preferences.PREFS_CONFIGURED.saveBoolean(this, true);
 
         return dataDir;
     }
@@ -199,7 +193,7 @@ public class Apple2Activity extends Activity {
                     // now append the actual stack trace
                     traceBuffer.append(t.getClass().getName());
                     traceBuffer.append("\n");
-                    final int maxTraceSize = 2048+1024+512; // probably should keep this less than a standard Linux PAGE_SIZE
+                    final int maxTraceSize = 2048 + 1024 + 512; // probably should keep this less than a standard Linux PAGE_SIZE
                     for (StackTraceElement elt : stackTraceElements) {
                         traceBuffer.append(elt.toString());
                         traceBuffer.append("\n");
@@ -230,6 +224,9 @@ public class Apple2Activity extends Activity {
 
         nativeOnCreate(mDataDir, mSampleRate, mMonoBufferSize, mStereoBufferSize);
 
+        // NOTE: load preferences after nativeOnCreate
+        Apple2Preferences.loadPreferences(this);
+
         mView = new Apple2View(this);
         setContentView(mView);
 
diff --git a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Preferences.java b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Preferences.java
new file mode 100644
index 00000000..d0df315a
--- /dev/null
+++ b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2Preferences.java
@@ -0,0 +1,155 @@
+/*
+ * Apple // emulator for *nix
+ *
+ * This software package is subject to the GNU General Public License
+ * version 2 or later (your choice) as published by the Free Software
+ * Foundation.
+ *
+ * THERE ARE NO WARRANTIES WHATSOEVER.
+ *
+ */
+
+package org.deadc0de.apple2ix;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+
+public enum Apple2Preferences {
+    PREFS_CONFIGURED {
+        @Override public void load(Apple2Activity activity) {
+            // ...
+        }
+        @Override public void saveBoolean(Apple2Activity activity, boolean ignored) {
+            activity.getPreferences(Context.MODE_PRIVATE).edit().putBoolean(toString(), true).apply();
+        }
+    },
+    HIRES_COLOR {
+        @Override public void load(Apple2Activity activity) {
+            nativeSetColor(intValue(activity));
+        }
+        @Override public int intValue(Apple2Activity activity) {
+            return activity.getPreferences(Context.MODE_PRIVATE).getInt(toString(), HiresColor.INTERPOLATED.ordinal());
+        }
+    },
+    SPEAKER_ENABLED {
+        @Override public void load(Apple2Activity activity) {
+            boolean enabled = booleanValue(activity);
+            boolean result = nativeSetSpeakerEnabled(enabled);
+            if (enabled && !result) {
+                warnError(activity, R.string.speaker_disabled_title, R.string.speaker_disabled_mesg);
+                activity.getPreferences(Context.MODE_PRIVATE).edit().putBoolean(toString(), false).apply();
+            }
+        }
+        @Override public boolean booleanValue(Apple2Activity activity) {
+            return activity.getPreferences(Context.MODE_PRIVATE).getBoolean(toString(), true);
+        }
+    },
+    SPEAKER_VOLUME {
+        @Override public void load(Apple2Activity activity) {
+            nativeSetSpeakerVolume(intValue(activity));
+        }
+        @Override public int intValue(Apple2Activity activity) {
+            return activity.getPreferences(Context.MODE_PRIVATE).getInt(toString(), Volume.MEDIUM.ordinal());
+        }
+    },
+    MOCKINGBOARD_ENABLED {
+        @Override public void load(Apple2Activity activity) {
+            boolean enabled = booleanValue(activity);
+            boolean result = nativeSetMockingboardEnabled(enabled);
+            if (enabled && !result) {
+                warnError(activity, R.string.mockingboard_disabled_title, R.string.mockingboard_disabled_mesg);
+                activity.getPreferences(Context.MODE_PRIVATE).edit().putBoolean(toString(), false).apply();
+            }
+        }
+    },
+    MOCKINGBOARD_VOLUME {
+        @Override public void load(Apple2Activity activity) {
+            nativeSetMockingboardVolume(intValue(activity));
+        }
+        @Override public int intValue(Apple2Activity activity) {
+            return activity.getPreferences(Context.MODE_PRIVATE).getInt(toString(), Volume.MEDIUM.ordinal());
+        }
+    };
+
+    public enum HiresColor {
+        BW,
+        COLOR,
+        INTERPOLATED
+    }
+
+    public enum Volume {
+        OFF(0),
+        ONE(1),
+        TWO(2),
+        THREE(3),
+        FOUR(4),
+        MEDIUM(5),
+        FIVE(5),
+        SIX(6),
+        SEVEN(7),
+        EIGHT(8),
+        NINE(9),
+        MAX(10),
+        ELEVEN(11);
+        private int vol;
+        Volume(int vol) {
+            this.vol = vol;
+        }
+    }
+
+    protected abstract void load(Apple2Activity activity);
+
+    protected void warnError(Apple2Activity activity, int titleId, int mesgId) {
+        AlertDialog dialog = new AlertDialog.Builder(activity).setIcon(R.drawable.ic_launcher).setCancelable(true).setTitle(titleId).setMessage(mesgId).setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int which) {
+                dialog.dismiss();
+            }
+        }).create();
+        dialog.show();
+    }
+
+    // set and apply
+
+    public void saveInt(Apple2Activity activity, int value) {
+        activity.getPreferences(Context.MODE_PRIVATE).edit().putInt(toString(), value).apply();
+        load(activity);
+    }
+    public void saveBoolean(Apple2Activity activity, boolean value) {
+        activity.getPreferences(Context.MODE_PRIVATE).edit().putBoolean(toString(), value).apply();
+        load(activity);
+    }
+    public void saveHiresColor(Apple2Activity activity, HiresColor value) {
+        activity.getPreferences(Context.MODE_PRIVATE).edit().putInt(toString(), value.ordinal()).apply();
+        load(activity);
+    }
+    public void saveVolume(Apple2Activity activity, Volume value) {
+        activity.getPreferences(Context.MODE_PRIVATE).edit().putInt(toString(), value.ordinal()).apply();
+        load(activity);
+    }
+
+    // accessors
+
+    public boolean booleanValue(Apple2Activity activity) {
+        return activity.getPreferences(Context.MODE_PRIVATE).getBoolean(toString(), false);
+    }
+
+    public int intValue(Apple2Activity activity) {
+        return activity.getPreferences(Context.MODE_PRIVATE).getInt(toString(), 0);
+    }
+
+    public static void loadPreferences(Apple2Activity activity) {
+        for (Apple2Preferences pref : Apple2Preferences.values()) {
+            pref.load(activity);
+        }
+    }
+
+    private static native void nativeEnableTouchJoystick(boolean enabled);
+    private static native void nativeEnableTiltJoystick(boolean enabled);
+    private static native void nativeSetColor(int color);
+    private static native boolean nativeSetSpeakerEnabled(boolean enabled);
+    private static native void nativeSetSpeakerVolume(int volume);
+    private static native boolean nativeSetMockingboardEnabled(boolean enabled);
+    private static native void nativeSetMockingboardVolume(int volume);
+}
diff --git a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2SettingsMenu.java b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2SettingsMenu.java
index 1d0f4a0e..38a8d4af 100644
--- a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2SettingsMenu.java
+++ b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2SettingsMenu.java
@@ -56,7 +56,7 @@ public class Apple2SettingsMenu {
             @Override public void handleSelection(Apple2SettingsMenu settingsMenu, boolean selected) {
             }
         },
-        AUDIO_ENABLE {
+        AUDIO_CONFIGURE {
             @Override public String getTitle(Context ctx) {
                 return ctx.getResources().getString(R.string.audio_enabled);
             }
@@ -99,7 +99,7 @@ public class Apple2SettingsMenu {
                 builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int color) {
-                        settingsMenu.mActivity.nativeSetColor(color);
+                        Apple2Preferences.HIRES_COLOR.saveHiresColor(settingsMenu.mActivity, Apple2Preferences.HiresColor.values()[color]);
                         dialog.dismiss();
                     }
                 });
diff --git a/Android/app/src/main/res/values/strings.xml b/Android/app/src/main/res/values/strings.xml
index 8c7132db..ebdc6c99 100644
--- a/Android/app/src/main/res/values/strings.xml
+++ b/Android/app/src/main/res/values/strings.xml
@@ -33,6 +33,8 @@
     <string name="menu_disks_summary">Insert a Disk ][ image file</string>
     <string name="menu_settings">Emulator settings…</string>
     <string name="menu_settings_summary">General, CPU, Joystick</string>
+    <string name="mockingboard_disabled_title">Mockingboard disabled</string>
+    <string name="mockingboard_disabled_mesg">Mockingboard could not be enabled</string>
     <string name="no">No</string>
     <string name="ok">OK</string>
     <string name="quit">Quit emulator…</string>
@@ -43,6 +45,8 @@
     <string name="reboot_warning">You will lose unsaved progress</string>
     <string name="reboot_summary"></string>
     <string name="spacer"></string>
+    <string name="speaker_disabled_title">Speaker disabled</string>
+    <string name="speaker_disabled_mesg">Speaker could not be enabled</string>
     <string name="speed_alt">Alternate CPU Speed</string>
     <string name="speed_cpu">CPU Speed</string>
     <string name="speed_swipe">Swipe changes emulation speed</string>
diff --git a/Android/jni/apple2ix.mk b/Android/jni/apple2ix.mk
index 5ca3ff61..9fbafa0f 100644
--- a/Android/jni/apple2ix.mk
+++ b/Android/jni/apple2ix.mk
@@ -11,8 +11,8 @@ include $(COMMON_SOURCES_MK)
 # Android build config
 
 LOCAL_MODULE    := libapple2ix
-LOCAL_SRC_FILES := jnihooks.c androidkeys.c
-LOCAL_ARM_MODE  := arm
+LOCAL_SRC_FILES := jniprefs.c androidkeys.c
+#LOCAL_ARM_MODE  := arm
 LOCAL_CFLAGS    := $(APPLE2_BASE_CFLAGS) -DHEADLESS=0
 LOCAL_LDLIBS    := -llog -landroid -lGLESv2 -lz -lOpenSLES
 
diff --git a/Android/jni/jnihooks.c b/Android/jni/jnihooks.c
index d4249b8e..4ef6290d 100644
--- a/Android/jni/jnihooks.c
+++ b/Android/jni/jnihooks.c
@@ -140,6 +140,9 @@ void Java_org_deadc0de_apple2ix_Apple2Activity_nativeOnCreate(JNIEnv *env, jobje
     c_initialize_firsttime();
     pthread_create(&cpu_thread_id, NULL, (void *) &cpu_thread, (void *)NULL);
 #endif
+
+    sleep(1);
+#warning FIXME TODO instead of problematic sleep ... need to preempt CPU thread by holding interface lock and displaying a splash screen and setting preferences/settings defaults before starting CPU
 }
 
 void Java_org_deadc0de_apple2ix_Apple2Activity_nativeGraphicsChanged(JNIEnv *env, jobject obj, jint width, jint height) {
@@ -162,6 +165,7 @@ void Java_org_deadc0de_apple2ix_Apple2Activity_nativeGraphicsInitialized(JNIEnv
 
 void Java_org_deadc0de_apple2ix_Apple2Activity_nativeOnResume(JNIEnv *env, jobject obj, jboolean isSystemResume) {
     if (!nativePaused) {
+#warning FIXME ... replace nativePaused check with cpu_isPaused()
         return;
     }
     LOG("%s", "native onResume...");
@@ -317,18 +321,6 @@ jboolean Java_org_deadc0de_apple2ix_Apple2Activity_nativeOnTouch(JNIEnv *env, jo
     return consumed;
 }
 
-void Java_org_deadc0de_apple2ix_Apple2Activity_nativeSetColor(JNIEnv *env, jobject obj, jint color) {
-    LOG("native set color : %d", color);
-    if (color < COLOR_NONE || color > COLOR_INTERP) {
-        return;
-    }
-    color_mode = color;
-
-    video_reset();
-    video_setpage(!!(softswitches & SS_SCREEN));
-    video_redraw();
-}
-
 void Java_org_deadc0de_apple2ix_Apple2Activity_nativeChooseDisk(JNIEnv *env, jobject obj, jstring jPath, jboolean driveA, jboolean readOnly) {
     const char *path = (*env)->GetStringUTFChars(env, jPath, NULL);
     int drive = driveA ? 0 : 1;
diff --git a/Android/jni/jniprefs.c b/Android/jni/jniprefs.c
new file mode 100644
index 00000000..8487814a
--- /dev/null
+++ b/Android/jni/jniprefs.c
@@ -0,0 +1,62 @@
+/*
+ * Apple // emulator for *nix
+ *
+ * This software package is subject to the GNU General Public License
+ * version 2 or later (your choice) as published by the Free Software
+ * Foundation.
+ *
+ * THERE ARE NO WARRANTIES WHATSOEVER.
+ *
+ */
+
+#include "common.h"
+
+#include <jni.h>
+
+void Java_org_deadc0de_apple2ix_Apple2Preferences_nativeEnableTouchJoystick(JNIEnv *env, jclass cls, jboolean enabled) {
+    LOG("native enable touch joystick : %d", enabled);
+}
+
+void Java_org_deadc0de_apple2ix_Apple2Preferences_nativeEnableTiltJoystick(JNIEnv *env, jclass cls, jboolean enabled) {
+    LOG("native enable tilt joystick : %d", enabled);
+}
+
+void Java_org_deadc0de_apple2ix_Apple2Preferences_nativeSetColor(JNIEnv *env, jclass cls, jint color) {
+    LOG("native set hires color : %d", color);
+    if (color < COLOR_NONE || color > COLOR_INTERP) {
+        return;
+    }
+    color_mode = color;
+
+    video_reset();
+    video_setpage(!!(softswitches & SS_SCREEN));
+    video_redraw();
+}
+
+jboolean Java_org_deadc0de_apple2ix_Apple2Preferences_nativeSetSpeakerEnabled(JNIEnv *env, jclass cls, jboolean enabled) {
+    // NO-OP ... speaker should always be enabled (but volume could be zero)
+    return true;
+}
+
+void Java_org_deadc0de_apple2ix_Apple2Preferences_nativeSetSpeakerVolume(JNIEnv *env, jclass cls, jint goesToTen) {
+    LOG("native set speaker volume : %d", goesToTen);
+    assert(goesToTen >= 0);
+    speaker_setVolumeZeroToTen(goesToTen);
+}
+
+jboolean Java_org_deadc0de_apple2ix_Apple2Preferences_nativeSetMockingboardEnabled(JNIEnv *env, jclass cls, jboolean enabled) {
+    LOG("native set set mockingboard enabled : %d", enabled);
+    //assert(cpu_isPaused());
+#warning FIXME ^^^ this should be true
+    MB_Destroy();
+    if (enabled) {
+        MB_Initialize();
+    }
+}
+
+void Java_org_deadc0de_apple2ix_Apple2Preferences_nativeSetMockingboardVolume(JNIEnv *env, jclass cls, jint goesToTen) {
+    LOG("native set mockingboard volume : %d", goesToTen);
+    assert(goesToTen >= 0);
+    MB_SetVolumeZeroToTen(goesToTen);
+}
+
diff --git a/Android/jni/sources.mk b/Android/jni/sources.mk
index 79ff39dc..f2f03bd3 100644
--- a/Android/jni/sources.mk
+++ b/Android/jni/sources.mk
@@ -33,7 +33,7 @@ APPLE2_META_SRC = \
 APPLE2_MAIN_SRC = \
     $(APPLE2_SRC_PATH)/font.c $(APPLE2_SRC_PATH)/rom.c $(APPLE2_SRC_PATH)/misc.c $(APPLE2_SRC_PATH)/display.c $(APPLE2_SRC_PATH)/vm.c \
     $(APPLE2_SRC_PATH)/timing.c $(APPLE2_SRC_PATH)/zlib-helpers.c $(APPLE2_SRC_PATH)/joystick.c $(APPLE2_SRC_PATH)/keys.c \
-    $(APPLE2_SRC_PATH)/interface.c $(APPLE2_SRC_PATH)/disk.c $(APPLE2_SRC_PATH)/cpu-supp.c
+    $(APPLE2_SRC_PATH)/interface.c $(APPLE2_SRC_PATH)/disk.c $(APPLE2_SRC_PATH)/cpu-supp.c jnihooks.c
 
 APPLE2_OPTIM_CFLAGS := -g -O2
 APPLE2_BASE_CFLAGS := -DAPPLE2IX=1 -DINTERFACE_TOUCH=1 -DMOBILE_DEVICE=1 -DVIDEO_OPENGL=1 -DDEBUGGER=1 -DAUDIO_ENABLED=1 -std=gnu11 $(APPLE2_OPTIM_CFLAGS) -I$(APPLE2_SRC_PATH)
diff --git a/Android/jni/testcpu.mk b/Android/jni/testcpu.mk
index 557323ca..bd7d5b87 100644
--- a/Android/jni/testcpu.mk
+++ b/Android/jni/testcpu.mk
@@ -11,7 +11,7 @@ include $(COMMON_SOURCES_MK)
 # Android build config
 
 LOCAL_MODULE    := libapple2ix
-LOCAL_SRC_FILES := jnihooks.c $(APPLE2_SRC_PATH)/test/testcommon.c $(APPLE2_SRC_PATH)/test/testcpu.c
+LOCAL_SRC_FILES := $(APPLE2_SRC_PATH)/test/testcommon.c $(APPLE2_SRC_PATH)/test/testcpu.c
 LOCAL_CFLAGS    := $(APPLE2_BASE_CFLAGS) -DTEST_CPU -DTESTING=1 -DHEADLESS=1
 LOCAL_LDLIBS    := -llog -landroid -lGLESv2 -lz
 
diff --git a/Android/jni/testdisk.mk b/Android/jni/testdisk.mk
index 77b5125d..d70841d8 100644
--- a/Android/jni/testdisk.mk
+++ b/Android/jni/testdisk.mk
@@ -11,7 +11,7 @@ include $(COMMON_SOURCES_MK)
 # Android build config
 
 LOCAL_MODULE    := libapple2ix
-LOCAL_SRC_FILES := jnihooks.c $(APPLE2_SRC_PATH)/test/testcommon.c $(APPLE2_SRC_PATH)/test/testdisk.c
+LOCAL_SRC_FILES := $(APPLE2_SRC_PATH)/test/testcommon.c $(APPLE2_SRC_PATH)/test/testdisk.c
 LOCAL_CFLAGS    := $(APPLE2_BASE_CFLAGS) -DTEST_DISK -DTESTING=1 -DCPU_TRACING=1 -DDISK_TRACING=1 -DVM_TRACING=1
 LOCAL_LDLIBS    := -llog -landroid -lGLESv2 -lz
 
diff --git a/Android/jni/testdisplay.mk b/Android/jni/testdisplay.mk
index 4c47b552..d9de4d04 100644
--- a/Android/jni/testdisplay.mk
+++ b/Android/jni/testdisplay.mk
@@ -11,7 +11,7 @@ include $(COMMON_SOURCES_MK)
 # Android build config
 
 LOCAL_MODULE    := libapple2ix
-LOCAL_SRC_FILES := jnihooks.c $(APPLE2_SRC_PATH)/test/testcommon.c $(APPLE2_SRC_PATH)/test/testdisplay.c
+LOCAL_SRC_FILES := $(APPLE2_SRC_PATH)/test/testcommon.c $(APPLE2_SRC_PATH)/test/testdisplay.c
 LOCAL_CFLAGS    := $(APPLE2_BASE_CFLAGS) -DTEST_DISPLAY -DTESTING=1
 LOCAL_LDLIBS    := -llog -landroid -lGLESv2 -lz
 
diff --git a/Android/jni/testvm.mk b/Android/jni/testvm.mk
index 8f5d1807..db897bb8 100644
--- a/Android/jni/testvm.mk
+++ b/Android/jni/testvm.mk
@@ -11,7 +11,7 @@ include $(COMMON_SOURCES_MK)
 # Android build config
 
 LOCAL_MODULE    := libapple2ix
-LOCAL_SRC_FILES := jnihooks.c $(APPLE2_SRC_PATH)/test/testcommon.c $(APPLE2_SRC_PATH)/test/testvm.c
+LOCAL_SRC_FILES := $(APPLE2_SRC_PATH)/test/testcommon.c $(APPLE2_SRC_PATH)/test/testvm.c
 LOCAL_CFLAGS    := $(APPLE2_BASE_CFLAGS) -DTEST_VM -DTESTING=1 -DCPU_TRACING=1 -DDISK_TRACING=1 -DVM_TRACING=1
 LOCAL_LDLIBS    := -llog -landroid -lGLESv2 -lz