i'm just trying to work out what the specs for the new PB 17" are likely to be. i'm guessing that they'll use the 7457, so that alone would give it a significant speed increase if all of the documentation from Motorolla is accurate. does anyone think there will be a big difference in the specs between the Rev.A and Rev. B PowerBook 17"? i'm guessing that if they use the 7457, they won't be shipping until late September. so i'm trying to decide now whether or not to get a current PB 17", or if the new PB 15" will be heaps better than the current 17"? (not considering the obvious difference in screen size ) what does everyone think?