Hello there!
I'm a developer who's been doing a lot of work on my own fork of StatusNet,
https://freesocial.org/ (see http://www.ohloh.net/p/freesocial for dev-stuff)
As may have been pointed out, but deserves repetition, is that this is the
Status.net _service_ being migrated to that company's new software project
(the company is changing forms as well).
Despite this, of course StatusNet software source code will still remain
free, available and working from code repositories. And it is definitely not
the end of free social networking. Other than this, there are several
projects working with the open protocol OStatus for federated social
networking.
Also - last but not least - GNU Social (essentially the same codebase as
StatusNet) is still very much alive! It is an FSF endorsed social networking
project and has had a recent boost of encouragement in the mailing lists
(much as a result from the Status.net thing):
http://lists.gnu.org/archive/html/social/2012-12/msg00043.html
And I know that I personally prefer many of the design decisions, both code
and license related, in the GNU Social project as opposed to Pump.io.
