I think the moving to DX10.1 should have been expounded upon a lil more. It wasnt very long ago, nVidia officially declared they werent going to have DX10.1 and that it wasnt really a true update/need. Guess I have to say that in the comments here.
nVidia rarely opens up with their top end cards, as theyve been burned in the past. This is just a test, with little to lose, not having to backtrack on their view of DX10.1 . Now they can make the DX10.1 claim, while still keeping it from the people in the know. Cant really promote DX10.1, and wont have DX11 for awhile, nVidia just cant win, but they set themselves up for this anyways.