Plus, they have a remote X-demo -- go try the Self web browser!
http://me.sunlabs.com/cgi-bin/index.sh
(I guarantee this is more entertaining than the last link I just forwarded.
And for that link, I found a talk:
http://www.dstc.edu.au/AU/staff/andreas-vogel/talks/uc/title.html
)
Rohit