you would think they would. after all, they need the people who MADE 3dfx and Gigapixel tick. Gigapixel especially, becuase they made this stuff, and it would make the most sense for them to stay, so that nVidia will then be able to figure out what Gigapixel has done, and also continue with the R&D (which I feel is what 3dfx spent most of their money on).
it finally appeared 3dfx was about to pull out with a great new product, not to mention that the V5 with HSR would have helped sales there.