Why would turning Windows into a Unix have helped anyone? Pike and Plan9 tried to save Unix better then ten years ago, and nobody gave a shit.
Also, why do you even want something like Maven? That's like bitching that Windows doesn't have autotools--or was that next on your list of complaints?
Tell me about how the MSDN is less helpful than man pages. Tell me about how the Windows API is worse documented and more poorly designed than POSIX (lol). Tell me about how executables compiled on one Windows machine don't transport to other Windows machines easily.
I'll stand by my statement, thank you very much.