moo: If battery life is your primary concern, the iBook will win by a small margin (maybe about half the theoretical 1 hour difference).
You should also have a look at the iBook and PowerBook fora on MacNN. The differences between the 12" 'Books has been hashed out there in several threads.
I chose the PowerBook because of its video-out options, i.e. DVI-out and clamshell mode, because it came with AirPort and Bluetooth built-in, and because it is marginally smaller and lighter than the iBook (which I owned before).
Escher
I've been waiting for a true sub-PowerBook for more than 10 years. The 11-inch MacBook Air finally delivers on all counts! It beats the hell out of both my PowerBook 2400c and my 12-inch PowerBook G4 -- no contest whatsoever.
|