--The iMac had USB ports in 1998. The first generation iBooks had it in 1999, as did the bronze keyboard Powerbooks that year (actually they had two USB ports).--
The USB iBook wasn't released till 2001!
I have a correction. Caught up in the heat of battle, I fell for an Apple marketing gimmick. I say that ads for the new Dual USB iBook released in 2001. It never entered my mind that Apple would make a big deal of going from one USB port to including two USB ports as a major inovation!
The DUAL USB iBook came out in 2001.