VSTS 2010 demoed at TechEd 2009
The TechEd conference is best known for showcasing Microsoft technology that is currently shipping or will ship within the next 6 months. I would say that's changed for this event with regards to Visual Studio. In some of the sessions and in the exhibit hall, we're showing elements of Visual Studio Team System 2010.
So if you're attending TechEd 2009 right now, come by the booths (we're way in the back in the Microsoft area) and take a look of what's to come in.