Back in June 06 we started this project with the Microsoft Architecture Strategy Team. Gianpaolo announced it on thursday, it went live:
Repository of the code and related documentation (including webcasts):
Community site where architects and developers can discuss in forums, report bugs, suggest and vote on new features, contribute code:
Bonus material, "behind the scenes", "deleted scenes":
I've been part of this project since the beginning and I gathered lots of knowledge to feed in my thesis. I will hopefully keep researching and working with the AST on all these exciting concepts and the architecture behind it.