Yes Troys's mod works great! That is what I have in my iBook as of this morning. My card arrived in the post just yesterday. The cost of the original airport cards on ebay is insane!
Macbook 2.1 core duo 1gig 160gb sata
iMac g5 w/1 gig 160gig all-in-one and SWEET!
iBook G4 IGhz
Quicksilver Dual 800's
iPod touch
"Guys, I think we just lost the platform here" Pete Conrad
When in doubt, try SCE to AUX