I'm up and running now with Team Foundation Server Service, and I can say that I'm quite impressed. http://tfs.visualstudio.com/en-us/ I've set up a continuous integration environment at https://mackolicious.visualstudio.com/ Where I've already added two projects.

There's a lot of basic functionality such as, backlog/user story generation, typical agile 'swim lanes' (to-do, in-progress, done), burndown, code/check-in history etc. My overview (dashboard) looks like this:

As you can see by adding in the capacity of the team and the sprint's dates, TFS is able to calculate burndown metrics, cool! I'm still playing around with the piece of kit! I've already added an application using Eclipse and one using Visual Studio and so far so good.