Today Dave Froslie was visiting Redmond from the Fargo MSFT site, and gave a talk to a VS team about Scrum, which I also attended as an observer. It was a good meeting, and I'm hopeful that this team will give Scrum a try. I invited them to our team's daily scrum meeting -- we'll see if they come!
A big challenge for everyone at MSFT (and probably most other places) in implementing Scrum seems to be fitting Scrum into existing and often heavy-handed project management processes that are anything but agile and lean. But with energy and effective persuasion it can be done.