I just learned that the New Organizing Institute (neworganizing.com) is planning a RootsCamp the same weekend. I'll talk to the organizers shortly to figure out if and how we can collaborate, as there may be some overlap topic-wise.
RootsCampDC has been moved out to April 12-13, 2008 (due to the fact that the race for the Democratic presidential nomination remains so close).
We were already working closely with the RootsCampDC organizers to make sure we capture the obvious synergies between our two events. We're glad this scheduling conflict is out of the way, and look forward to welcoming many RootsCampers at our event.
Btw, we're at 70+ sign-ups and have raised the first few sponsorships (Democracy in Action, Sunlight Foundation, AmericaSpeaks, E-Democracy.Org, and University of Michigan, School of Information).