If you’re new to VS 2010 and are interested in learning about all the new features in this release, I recommend watching these videos:
Brian Keller talks about the ALM and testing capabilities in VS 2010:
If you’re interested in understanding the core testing capabilities or presenting the testing features of VS 2010, Brian provides an interesting presentation tool. Navigation in the UI takes a bit of practice but otherwise, it’s a unique way to explore VS 2010 testing features at your own pace.
Martin Woodward provides links to sessions from TechEd 2010:
Although not related directly to the VS tools, these MS technology videos look educational.