I'll break this down: - Android: Java, NDK (C++, C), ObjC (via Apportable), MonoTouch (C#/F#), Lua, JS - iOS: C, C++, ObjC, JS, Lua, MonoTouch ... actually,

I'll break this down: - Android: Java, NDK (C++, C), ObjC (via Apportable), MonoTouch (C#/F#), Lua, JS - iOS: C, C++, ObjC, JS, Lua, MonoTouch ... actually, that's as far as I want to go. Point is, you can pick your implementation language, and people do. We're also likely to see additional language explorations on these platforms as they stabilize and mature.