Some neat updates have been posted to the VSTS "Rosario" specifications. In particular, the three new ones:
Codename “TFS Bug Submission Portal” Power Tool for Team Foundation Server 2008
Send Mail from TFS
Core Linking Work Item Tracking
Check them out at : http://msdn2.microsoft.com/en-us/teamsystem/bb936702.aspx and provide some feedback. It's great to see this stuff being made available up front, so the general community has the ability to provide feedback that may influence the final product.
Visual Studio Team System Code Name "Rosario" Specifications