Mike also gave some updates on the status of Diablo 3 saying:
On the 'Diablo 3' front, I'm pleased to report that we began internal, company-wide testing last week. The game is looking great and we are currently targeting a Q3 launch for external beta testing. The development team is working hard to try to launch 'Diablo 3' this year, but I want to be clear. We do not have an official release date or window yet.
Not many details on the external beta are known, but as soon as they become available you can bet that we'll be delivering those details to our dear readers.