BING! We have a winner!
Awesome. That's the stuff I was seeking. I won't embarass myself by asking how you found it, but thank you.
Addendum: I also found this news story (on this site)
In other words, you're playing a PC title, in 3D, over three different screens. ... The Surround setup requires two Nvidia cards in SLI; The demo on the show floor was running two "Next Generation" GF100 GPUs. One GPU powers the left and center displays, and the other powers the right display. In this case, the displays weren't monitors, rather three 120 Hz DLP projectors pointed at one very long screen. If you happen to have three 120 Hz monitors lying around, you should be good to go.
Thanks for your interest, folks. And thanks, Benski.
For some reason, I was under the impression only AMD cards could do this surround stuff, so I asked.