Do not be too quick to dismiss the Intel Integrated Graphics chip 945. Intel insists that if it is coupled with 512 Mb of memory, then it meets all Vista requirements. Here is the Intel info http://www.intel.com/design/chipsets/mobile/945_fam.htm Actually, this may be an excellent solution for a Tablet PC, unless of course one wants to do heavy gaming on it. An onboard nVidia or ATI will require additional cooling and thus increase the weight of the tablet substantially. So, I would suggest that you may want to ask Asus directly about Vista upgradability. The main problem that I would have with such a machine is the screen (a 13.3'' widescreen is an unknown entity although its resolution of 1280 x 800 is quite good) and the lack of a Firewire port. But between portability and full list of ports, I would always select portability.