About a month ago, in the aftermath of the iPhone announcement, I wondered aloud what the future of multi-touch might be. Stupidly, I concentrated my speculation on small, handheld devices and tablet-style computers. But why should multi-touch environments be small..?

One of the chaps doing the handiwork in that video is Jeff Han, famous for his demonstration of a (somewhat smaller) multi-touch setup at TED a year or so ago. This video shows work by Jeff’s new company Perceptive Pixel. And that’s the progress over just one year