A preview version of Visual Studio 2012 (the next version after VS2010) is now available.
Does anyone know what new C++11 features it supports? (I'm not in a position to try it out at the moment).
It's worth noting that Visual Studio 2010 already had quite a bit of early C++11 support. So to summarize what is already linked to in other answers, here is what is new in Visual Studio 11 that was not part of Visual Studio 2010:
In early November 2012, Microsoft announced the Visual C++ Compiler November 2012 CTP, which adds more C++11 functionality to Visual Studio 2012: