The new Powerbooks [15" & 17"] use the "ATI Mobility Radeon 9600 graphics processor with AGP 4X support and 64MB of DDR SDRAM video memory". I have been following this product closely since it's introduction in early March of this year because they are supposed to be upgradeable, at least by the manufacturer, using ATI's new "FlexFit" technology that makes these Graphic Processor units [GPUS] pin-compatible. Here's ATI's info. on the MR-9600 line. Scroll to the bottom of the linked page to see the section on FlexFit: http://mirror.ati.com/products/mobilityradeon9600/features.html Has anyone looked into this yet? Being able to upgrade to a 128 or 256 GPU next year would be awesome!! Thanks in advance for any help or advice.