Apple can't possibly expect just to speed-bump the PowerBook until this time next year, especially with the new 12" and 17" PowerBooks making the TiBook look a bit dated.
even if the next revision of the 15" gives it a Aluminium case, that might just help it continue on for the next few months. the 15" needs a big change, and everyone is expecting that change to be the IBM's PPC 970.
eventually even the 17" will need a radical update... perhaps this is why we keep hearing rumors of dual-processor PowerBooks. if the 970 really isn't coming until this time next year, i think there is a very good chance that we will see a 17" Dual-G4 PowerBook.
even if the next revision of the 15" gives it a Aluminium case, that might just help it continue on for the next few months. the 15" needs a big change, and everyone is expecting that change to be the IBM's PPC 970.
eventually even the 17" will need a radical update... perhaps this is why we keep hearing rumors of dual-processor PowerBooks. if the 970 really isn't coming until this time next year, i think there is a very good chance that we will see a 17" Dual-G4 PowerBook.