Time and time again...
I can't recall all the times I've read on these forums that there's no point in having both a iBook 12" and Powerbook 12" because they are so similar. So much so that the 12" PowerBook didn't really get revised in the last PowerPC revision with the 15" and 17" got better screen real estate. While I see major differences between the 14" iBook and 15" PowerBook, I can't see as large of a difference between the 12" models. That being said, going to 13.3 inches allows for apple to tone down there portable line and streamline it a little further. For example, all 13.3" models be called a MacBook but come in multiple (3 configurations?). The first being the budget config. with a core solo, integrated graphics, combo drive, etc. to replace the 12" iBook at $999-1099. A middle line model (replacing the 14" iBook) with 1.67 core duo at around $1299-1399, integrated graphics, super drive. Then a last config. to replace the 12" PowerBook with 1.83 core duo, superdrive, dedicated graphics card (Radeon x1300?) with 64/128 mb of vram priced at $1499-1699. Oh, one last thing to seperate them will be bells and whistles of course. Base 512 in the low end model, 512 in the middle end model, and 2x512 (1 gig) in the high end config. That's my best guess at least, makes sense to me too - especially if these new models are like 1-1.1" thin, remain around or under the current weight of the smaller screen 12" models of 4.6-4.9 pounds, although they may differ on battery life, unless of course we see the low-voltage core's in there but I doubt that due to their high price tags, but maybe on a high end configuration to replace the 12" PowerBook. But I always thought the only hardware (not design) difference between the 12" iBook and 12" PowerBook was the dedicated graphics card and superdrive, and a slightly higher-clocked processor. I think these two lines could and should merge seamlessly but it's the design that will make people upset. Whether it's wanting the durability and trademark white of the iBooks, the Aluminum of the PowerBooks, or those who want to see something in black to match their iPod/Nano.