As a sidenote regarding iOS, you could checkout http://www.robovm.org/ http://www.robovm.org/. It's already used for running libgdx (a Java game framework for a

As a sidenote regarding iOS, you could checkout http://www.robovm.org/ http://www.robovm.org/. It's already used for running libgdx (a Java game framework for a number of platforms) games on iOS for example.