The market share of Windows Phone is a rounding error on the shares of iOS and Android. It's not a noticeable chunk, it's a statistically insignificant chunk.
Square-Enix can't even get this app out on Android in a timely manner, which controls >75% share of the world's smartphone market. To think they will ever get around to Windows Phone, or Blackberry, or Symbian, or anything else is a bad joke.
