Tessellation is just a marketing gimmick to me, i think Ati will hands down beat nvidia to it with the next gen cards, and also at the same time, the 5870 still dominates very much I think in real world performance.
Thanks for the link, the 3d Vision technology is once again a copy from Ati's Eyefinity technology, but honestly how many users are going to buy those shades to play a game? It won't work.
Nvidia should have been able to deliver a very powerful GPU but they couldn't, and instead focused on things like Physx and tesselation to just add more 'junk in the trunk' to a card, it's mostly marketing and I can't wait to see what Ati will have in store. (Ati engineers are probably LOLing at this right now, smiling and knowing who the leader is

)