[aryastark]

Not sure what you mean. I've developed Android apps on Windows 7 using Cygwin and make just fine. It's nearly identical to using it on Linux.

[cwmma]

You still have to install Cygwin, other solutions require no .dlls

[pekk]

No .dlls, just rewriting everything in Javascript. Because that's so much less invasive than a dll to let you use existing mature solutions