Yes but why would you want to? I can't think of a single long term advantage of using a language that high level to build system software. Sure it makes a cute

Yes but why would you want to? I can't think of a single long term advantage of using a language that high level to build system software. Sure it makes a cute research project but that's about it. As for application level stuff, a big chunk of windows 8 is c#, mainly in the metro space as is windows phone.