There is a software called "Democracy Player" [1] which is open source
(XUL-based, like Firefox/Thunderbird), plays lots'o'video formats
(including OGM), and can handle video streams.
This might be the answer to the commons video dispute. The page also
explains how to turn web-based videos into streams that then can be
viewed via Democracy Player.
Magnus
[1]
http://www.getdemocracy.com/