OK so here"s the question "what does it take to kill the 32bit platform and Microsoft"s Windows Vista OS, not even a year out of its beta code"?
Answer: 4GB ram + GPU with on board memory
I take an alternative and purely speculative look at the Vista 32bit 4GB Memory limit. And why it may become the most compelling reason to upgrade to Windows 7 (Vienna) and an answer to why Microsoft allowed Vista to take 5 years of development to get to RTM