while you can easily find guy able/wanting/alreadydone things "just for fun" on L-UX/BSD, even for talking about, Windows developers ask money.
let alone comparing results of their "work" in each cases.
also more useful/powerful/functional development tools is evailable for Free[in both meanings, usually] in areas from [various]scientific purpose to very utilitarian.
point is if "We" really needs something, like "more xxxx", he haves it, otherwise its untrue.
Develop for windows and get 80% of the total users...
Maybe that is reason enough.
But I agree with the previous post. There are good reasons why developers stay away from the borg... I mean windows.
talking about "total users" is depend context/meaning of "users"word: majority of them, in generic computing terms, use Symbian/Android-based devices.