This isn't going to be that bad. They've thought of some new ideas too, rather than just halving and having even and odd framing.
Wel the ones that stick out to me are Supertile mode, and Super AA too, and I like the idea of the Scissor mode too, which seemed to work sometimes with the Geforce cards.
Wouldn't it be kewl though if you had a excellent card, and you could run at full resoloution settings and everything else except for full Antiaslising and Antistropic filtering and the second card then focused on the Antialising, and antistropic filtering so basically the game could go to max settings all the way and with these extra settings which are only capable on really new cards (I think that would be good).
I wouldn't know if they could add that to it though since they seem to share, rather than intertwine each other.