As promised in various threads, I've posted my custom 1.0.4.6 based firmware image, instructions, and commentary at:
http://home.comcast.net/~kfurge/wl700ge.html
Usual disclaimers: Dangerous, reflash at your own risk, as-is, no warranties, etc...
Future images to come as significant progress is made. Hope some of you find it useful.
- K.C.