I just read Brian's post (over month after the fact :() about Rosario specs - http://blogs.msdn.com/bharry/archive/2007/11/30/vsts-codename-rosario-specifications-begin-to-arrive.aspx

It's a great way to influence product that is being written right now (literally :) ). If you are interested in changes we do to:

• History dialog
• Add to source control
• Labeling

please read the specs (http://msdn2.microsoft.com/en-us/teamsystem/bb936702.aspx) and comment on the forum!