OMG. The temperature in hell just dropped another degree. Clang will be used as Microsoft's cross-platform first-stage compiler. El Reg reports.
Also mentioned is that MS will be making a build-only toolset in the fashion of Apple's command-line tools. As things stand, that's probably the best news we've ever heard. I just hope they include enough tools to be useful, like resource compilers and the like, else it's just another meaningless olive branch.