The four founders describe the current state of the project as : "We already have a rudimentary prototype of Diaspora running on our machines, and are working like mad to make it all we can be. Our current implementations include GPG encryption, scraping Twitter and Flickr, awesome design aesthetics, and the initial stages of connection infrastructure (“friending” other Diaspora instances)."
Well done guys, I think it's really amazing and at least it's enough for more than 3000