This was a popular request after the last slashdot article. Don't know if anyone's done it yet but here's my server anyway. It's designed for the way I do things so it probably won't be too useful to people as it is -- hopefully it'll inspire someone to add this functionality to a real server.

Oh yea, the URL: http://www.cs.wisc.edu/~nmueller/rioserver.tar.gz

--Nate