Crossing a Theremin and Surface would sound trite, but g-speak really represents a key leap in data visualization and HCI. Demo video and assorted links below.

g-speak overview 1828121108 from john underkoffler on Vimeo.

Here’s a clip about Microsoft Surface, mentioned previously if you’ve been in a cave.

And a gratuitous link to where you can buy a Theremin and read more about them and other Gestural Control devices.