Why everyone think it - AMD/ATI merger - would be a death-sentence to 3D? While it's highly unlikely to happen, think about the quote above. It says NV wouldn't be too happy with it. Why?
Instead of fabbing out chips from TSMC, Chartered, etc., ATI will have an access to much more advanced manufacturing technology. AMD wouldn't have capacity? I doubt the high-end graphics chips sales are anywhere near the volume of CPU sales. AMD can just share a fraction of fab space with ATI's high-end chips and could still get by with it. Especially once Fab36 runs in full force.
This means, when NV'd be designing chips w/ 90nm or 80nm, ATI would have 65nm for their designs. When TSMC finally catched up with AMD/Intel's current manufacturing (say, 65nm), ATI would be one step ahead with AMD (say, 45nm). Mid-to-low level GPUs can still be outsourced from any of those fabbing houses.
This would put a tremendous pressure on NV and would eventually force NV to build its own fabs. (which would take lots of money and time) In the meantime, this would give ATI a great chance to gain its marketshare.
Of course like someone mentioned, this is a short-term scenario. (say, 1~3 years at most) After that, no one knows where industry would go. But again for this short term, I can't see Intel and NV co-op to fight against AMD-ATI Corp. Intel will be, well, always Intel so they don't need anyone's help other than.. Apple (lol) to keep MS/Dell in check. The biggest fire would be on NV's feet.