I love this thing. I'm a student, and I could come up with some neat ways to use this. We do a lot of team-projects, so we are constantly sending back and forth powerpoints or meet at the library sitting in front of a laptop to discuss some issue. If this was made available to universities and students at a reasonable price, I guess it could really take of, and make life so much easier for us.
This is a great video. I love to see what's possible today using advanced computer systems. This reminds me of another research project at MIT I have read about some time ago.
To me, it seem like those two things combined could really have an impact on how we can organize our information (and essentially our life) by the help of "software agents".