Upload & Sell: Off
OMG, how noisy are they! My D700 files are much cleaner than that. If this is definitive of the D800 at high ISO - which I doubt, as they will be cleaner in LR4, its a definite no no for me as I need a high ISO camera, and replacing my D700 with the same or worse is not gonna happen.
I do expect to see much cleaner images once the D800 is out in the wilds and people have played with it more
What did you expect - noise free images at 12800! As Dave said, if you printed a D700 & D800 image at the same size, visible noise is going to be very similar at the same ISO. The ISO6400 image looks pretty close to the D7000 @ 100%. If you down sized the D800 image to 16mp, visually it would look maybe a stop cleaner which would certainly put it in D700 territory.
SOOC, don't expect to see dramatic improvements over these samples.