I know for a fact that many small/indie studios have done exactly that: ask MS money to port to WP8. The drama I suppose came from the wording and then one nois

I know for a fact that many small/indie studios have done exactly that: ask MS money to port to WP8. The drama I suppose came from the wording and then one noisy fan that started doing, well, what fans on the internet do. If you don't choose WP8 to be your differentiating factor, then it makes little economic sense to support it. Sure there's some residual profit to make if the port is easy, but you could instead spend your valuable time developing the next game for the platforms that do matter in economic terms. Note that the Windows platform on mobile is odd in the sense that phones and tablets use different OSs, unlike Android or iOS. The advantages and disadvantages of that decision can be debated elsewhere, but it clearly can make porting more complicated for non-devoted developers.