If it were me, I'd develop in something like Xamarin/mono (http://xamarin.com http://xamarin.com) and if a convergence does happen, you'd imagine Xamarin would

If it were me, I'd develop in something like Xamarin/mono (http://xamarin.com http://xamarin.com) and if a convergence does happen, you'd imagine Xamarin would likely figure out a way to allow your apps to run on the new platform.