Let me see if I can remember any....
www.gbadev.org
www.devrs.com/gba/
Obviously I suggested them as places to look for info and leads, not some place you'll find the code you're looking for. :) There are a lot of resourceful people, so maybe someone will have additional insight.
Don't forget that all new PocketPC machines are also using StrongARM. Ah, how far that series has come (and I thought it was being put to good use in the Newton).
Oh, and if you do ever get a GBA (they're pretty neat), then
www.portablemonopoly.com is a site you'd want to check out for a lighting hack.
Bruno
Who's never owned a legacy Acorn product.