As with earlier VRM gatherings, the purpose of the workshop is
to bring people together and make progress on any number of VRM topics
and projects. The workshop will be run as an "unconference" on the open
space model, which means session topics will be chosen by participants.
Here is the Wikipedia page on open space.
In open space there are no speakers or panels -- just
participants, gathered to get work done and enjoy doing it.
Participation includes contributing to the VRM Workshop 2009 wiki.