This is a concept video of how to effectively incorporate multi-touch into a desktop computer. That part of the video is interesting, but I think the even more revolutionary idea in this video is how they suggest changing the "windowed" approach to the desktop. I can see some pitfalls in what they call "con10uum", but I think it is a great starting point.
I would love to hear anyones thoughts on the topic or if anyone else has links to new types of UI. New UI concepts are very exciting!