Adam Cogan from SSW was in Redmond later last year, and he caught up with the TFS Agile Team while they were doing a Stand Up. He's produced a couple of great videos explaining what he saw.
By the way, these are a part of a pretty cool set of videos SSW are producing under the banner of SSW TV
Is it some Team in Microsoft?.
There are a lot of other agile tools. I Use Yodiz
@Dave, yep, it's the team who build the tools they're using - kind of a meta meeting