I changed gigs at Microsoft last June by joining the Windows Phone team. We've been pretty quiet up until Monday, when we unveiled the Windows Phone 7 Series. My new role is on the developer documentation team, and I'll be able to talk more about how to develop for the phone after MIX. If you resigster for MIX, you'll receive the development tools for Windows Phone 7 Series.
In the meantime, if you're hungry for more Windows Phone 7 Series development information, I'd suggest following @ckindel on Twitter or subscribe to his blog at http://blogs.msdn.com/ckindel.
Stay tuned, the future is coming!