diff --git a/ofw/README.md b/ofw/README.md
index 0e17aa9..08a9b91 100644
--- a/ofw/README.md
+++ b/ofw/README.md
@@ -5,6 +5,26 @@ OF816.  It is based on IBM's [Slimline Open Firmware](https://github.com/aik/SLO
 that is notably used in IBM POWER systems and QEMU.
 
 **There are Bugs**
+* Package instances don't quite work right.
+
+Working features:
+* Device tree.
+* Properties.
+
+Unimplemented features:
+* FCode additions (to-do).
+* nvram (board-level addon).
+* Framebuffer/display support (to-do).
+* Device probing (to-do).
+* Support packages (to-do).
+* FCode debugging and Forth source-level debugging (probably won't do).
+* Client interface.
+* Other miscellania.
+
+Difficulties:
+* SLOF is based on a 64-bit system.  The basic stuff ports to 32-bit
+  easily enough, but the cool stuff like FAT and ext2 support rely on
+  the 64-bit extensions.
 
 The build script borrows tricks from SLOF to incorporate the C preprocessor
 and remove comments and extra lines from the code, producing a single file