Scoble just revealed he was using an unreleased version of Plaxo Pulse at Facebook when he got shut down and blocked. He maintains he was just trying to get back what he had put in: his own Contact information.
Facebook has not yet joined the conversation but the day is early. It will be interesting to see how long it takes them to join a conversation that is most relevant to them. It will also be interesting to see who responds from Facebook.
Facebook has only been officially open for an hour, but already there have been hundreds, if not thousands in the conversation, and still nothing from them.