A nice little survey of what the academia already had to say about TDD a few years ago. Clearly the outcome seems mostly positive.

Very interesting stuff. This doesn't give a very cheerful picture of the current state though. Can a XMPP revival be in the cards? That would be an interesting outcome.

It's nice to see there are turn key solutions for hosting your own XMPP server nowadays. And the community behind this one even improve on the mobile applications.