I was just catching up on my blog reading...man, am I behind. Anyway, I came across a posting from Brian Harry discussing the internal tool that he uses to manage his TFS dogfooding servers and get those fantastic statistics that he keeps coming out with month after month.
He gives a nice overview of the app with screenshots. I'm fairly impressed with the breadth of data the tool provides. He finished up by asking for comments as to whether anyone felt that the tool should be published as a Power Tool. I would highly recommend,if you are interested in this data, that you go read the article and leave him a comment leting him know that it would be great for him to release it....I already have :)