Hm, do you think it'll only take a month for it to be ported to Windows?
Right now the issue is library support - swiftc can already just spit out LLVM IR: https://github.com/kripken/emscripten/issues/2427
The stdlib would be included in the open source release.
Linux boxes would fulfill "non-Apple product" though. Unixy programming languages like Swift and Python have always been weird on Windows.
Even then, building some of the fancier libraries (with native code) by hand is bit involved.
In fact, Anaconda works very well on Windows, as long as you don't require extreme latest versions of modules.