Wikimedia Foundation, he joined StatusNet and became their senior architect. Apparently he liked what we do at translatewiki.net because we can now localise the software behind their micro blogging service.
It is quite awesome to have Brion back, it is great to see more relevant applications that we can localise at translatewiki.net. StatusNet makes use of the "gettext" format so we will gain more experience supporting that format. With Brion at the other end, it will take effort but it will go smoothly.
One nice detail; StatusNet supports OpenID..