Juce works with Visual Studio 11 with some minor changes, which is great. This does not mean it can be used with Metro Style Apps though. I find this important because Metro Style Apps are the only kind of apps that will be allowed into the Windows App Store.
Metro Style App projects impose restriction about the APIs that can be used. There are functions in the crt that are not allowed for example _tzset. Here is a complete list:
http://msdn.microsoft.com/en-us/library/hh674596(v=vs.110).aspx
Compiling juce_core on Visual Studio 11 for a win32 project works fine (with small changes). With a metro style app project there are many errors.
Are there plans for Juce to support Metro Style App projects? And is there a broad timeframe for that, eg before win8 gets released / after win8 gets released?