New project in VS 2010 RTM (no support for VB.NET though):
However this build is good. I'm running VS 2010 Ultimate and VS 2008 Team Suite and this build integrated with VS 2010 RTM nicely.
It is also worth noting in this release of WP7 dev tools, you get Expression Blend 4 for Windows Phone beta. In the CTP you had to download this separately.
So experience so far is great, well done Windows Phone 7 team.
Emulator running bing:
I'll post my experiences of actually writing WP7 code using these bits in later posts. In the mean time you can download and try for yourself.