Formerly known as Teamplain Web Access for Team System, Microsoft Visual Studio Team System Web Access has been released and freely available as a download to licensed customers of Visual Studio Team Foundation Server.  Microsoft recently purchased devBiz and is offering their former product for free as a Power Tool.  At some point I'm sure they will bake into the main product but for now, it's a great value-add to the TFS product line.

It's really a great tool for you to use if you don't feel like installing a lightweight version of Visual Studio for users who really don't need all of it.  It reproduces pretty much everything that you could do in Team Explorer but in a nice web application.  I'd say It's nice to have even as a developer!

Ed B.