Well, if they're updated at MWSF, what I HOPE to see would be G5 Powerbooks (or the dual-core G4s, whatever works out), and then equally cool (actually, literally cooler, since the G5s would be so hot) would be to see either 1.5 Ghz G4s or the aforementioned dual-core G4s (if the PBs get G5s) across the iBook line. The iBooks would be redesigned to be super-thin, 5 hour battery life laptops made out of the coloured aluminum that's currently used in the iPod minis. This was rumoured for a while, and I think it would look awesome for a laptop, and the colours would attract the University/College market well, at the same time as going with the "From the Makers of the iPod" thing Apple seems to be pushing.