Yesterday, Ed Hintz and I gave a "brown bag" presentation in Redmond for some internal groups that will begin using TFS.  I've created a public version of the slides and attached it to this post.  The presentation goes over a few concepts (the intended audience is already quite familiar with source control), shows some common operations with the command line, gives an overview of how to write tools that use version control, both using the client API as well as VS add-ins, and introduces the command available in tfpt.exe.