I expect a iBook update to come at WWDC. After seeing what Apple did with the iMac, I am very hopeful. The PowerBooks will still have a few things to differenciate them from the iBooks: widescreen, FW800, PC card slots, ect. As long as PowerBooks have widescreen, there is going to be a difference between them. I expect 64mb VRAM, Bluetooth, scrolling touch pad, bigger hard drive, more RAM. Sure it puts it right into PowerBook range, but I don't think Apple has a problem with that. Look at what they did to the iMac.
lasuther
lasuther