Ron Jacobs has posted up an ARCast video from TechEd 2007 in Australia. About 3 minutes in he does a nice interview with an organization using Team Foundation Server in a cross-platform environment. While I spend a lot of time talking about the performance of TFS over the WAN and extending the benefits of Team Foundation Server outside of Visual Studio by using the Teamprise Clients as well as the Microsoft MSSCCI provider(pronounced "Miss-key") - it is always nice to hear it from real people in a real company....
Anyway - if you have a spare 15 minutes, go take a look.