Well sorta. The demo at the site was impressive. Looking at it, I had those "but of course" or "why didn't I think of that" thoughts. Unfortunately, there were some problems getting it to run on my Vista system. Just as well. Better to wait until they release 1.0 and a few more of the bugs are worked out and see if it gains more market traction. This UI could literally change the face of searching.
Check it out at: http://www.spacetime.com