The C# PDC sessions are now online. Experience what we saw at PDC last month, minus the pervasive campfire smell.

You can either download the slides or watch the presentation (using Microsoft Producer, IIRC). I'd suggest watching:

TLS320 - Visual C# "Whidbey": Language Enhancements (Anders Hejlsberg)

TLS321 - Visual C# "Whidbey": IDE Enhancements for the C# Developer (Scott Wiltamuth and Anson Horton)

TLS343 - Visual Studio "Whidbey": Advanced Debugging Techniques (Habib Heydarian)

Oh, and I understand that there was some sort of announcement about some "OS thingy" at the conference - you might want to look at those presentations as well.