My first post in the new tech forum-great idea, Astro!
I touched on this in the discussion in Ahto. While I think this merger would have some advantages such as better, more efficient and cooler-running Nvidia GPUs (ultimately 45nm, same goes for the AMD/ATI merger), it will slash the current selection of four CPU/GPU combinations to just two, namely AMD/ATI and Intel/Nvidia.
I've already read that future ATI products will probably no longer support Intel CPUs, and if an Intel/Nvidia merger occurs I can only see them going the same route in retaliation. If this is true, it's really going to suck.