How does an AGP DX10 card figure into supportability issues for you? I'm serious, I don't know. It seems to me that a video card is a video card, regardless if it's on AGP or PCI-E. Can you provide me an example where supporting a 7600 is "different" on AGP than PCI-E?
In the case of the 7600 there would be no differences as we currently expect only AGP bandwidth for this GPU class. But as part of our research we may find some use of PCIe on the D3D10 class. If nvida now will offer a D3D10 hardware on AGP I have to check every idea from someone in the team if it will work with AGP too. Even if the attached feature would be optimal we need to detected such D3D10 AGP cards and disable such a feature on default. I need to stay on this high level sight at the moment as the game is still unannounced.