It seems we've gone back to old ati days in which the drivers stink. It is certainly odd to see the performace (fps) go up when the resolution goes up thats quite a 'feature' that several reviewers have reported across several different games.
The only applicaiton it seems to do well in is 3dmark 05/06, seems it'll make the scoreboys happy but thats all.
They have had to price it really cheap (for there flagship card) to try and shift some as its performance is in the GTS ball park which is a £200-250 card ($350-400)
It is also worrying to see its older brother the x1950xtx beating it on several occasions and usually by some margin.
The only dx10 bench i've seen is of a dx9 game patched to dx10 by AMD in which the 2900xt still looses and nvidia have said wait for the official patch before testing it on our hardware, they have tho released a driver update which fixes the bugs created in the amd specific bench..
results here ...
http://www.guru3d.com/article/Videocards/431/17/