[codemechanic]

checkout http://www.tonido.com.

[motters]

Looks nice, but I'm not sure how open source this is. It appears to have an SDK under Apache, but the rest is vague.

This also raises alarm bells:

http://www.tonido.com/forum/viewtopic.php?f=32&t=548

If there's a version of this which is completely open source and on a plug, I'd buy that as a facebook replacement.