Windows 10 mobile app (UWP?)

I realize this is likely a pipe dream, but I read today that the Xbox just got a tablo app, and windows 10 has one…is it so hard to make the app a UWP app so that those of us with windows 10 mobile phones can take advantage? Seems like it is so close already…i thought that MS had made some tools to make porting an app to UWP platform almost a no-brainer?