Diaspora: An Overdue Update
Appleseed is a lot farther along, and has been releasing steadily this whole summer.  It's years ahead of Diaspora, they've been putting out a new release every month, and they already have a bunch of nodes already running their software.http://opensource.appleseedproject.orgI think by the time Sep 15th rolls around, Appleseed will be on it's fourth release this summer.