Quartz Extreme Clarification
There appears to be an endless amount of confusion regarding Mac OS X (Jaguar) and Quartz Extreme acceleration.
According to Apple, a "supported" video card is the following:
*nVidia: GeForce2MX, GeForce3, GeForce4 Ti, GeForce4 or GeForce4MX. ATI: any AGP Radeon card.
Then, they make this recommendation:
32MB VRAM recommended for optimum performance.
In confirmation is this xlr8yourmac thread in which an ATI employee notes that Quartz Extreme will work with 16mb.
Bottom line: the new iBooks will be able to take advantage of Quartz Extreme.