I actually visited, because we were invited to talk about a partnership in the area of Open Source. While the talk was certainly interesting, I was asking my contact directly, how the situation is internally. And while he is very much into Open Source and trying to push it (within and for Microsoft), he made it very clear that this is only a tiny portion of Microsoft and that the mindset of 90%+ of Microsoft is still the old one, trying to get rid of your competitors.