Some very cool VSTS videos here:
Unit testing seems to be finally fully supported. Also auto generating unit tests, code coverage and more!
Finally! no more turning to half assed, disgusting looking, un-usable freeware bug tracking (no I don't like web based interfaces) finally it is right inside vs.net.
You can post bugs either from withing vs.net, excel, ms project and other places, and then just “sync“ them all together. very nice.