Just watched the JHH GTC keynote. As expected, given the audience the focus was on HPC stuff. There were a couple volumetric and tessellation demos too but nothing that will show up in games anytime soon. There was a sneak peek of tessellation in H.A.W.X 2 (starting at 4:40) but the PC version is delayed to November so it'll be a while before we see benchmarks.

http://livesmooth.istreamplanet.com/nvidia100921/