Yup, thats exactly what Monotouch does. It's something like: C# -> IL -> Mono AOT* -> ARM binary -> xcode/LLVM -> normal iOS binary * AOT = ahead of time comp

Yup, thats exactly what Monotouch does. It's something like: C# -> IL -> Mono AOT* -> ARM binary -> xcode/LLVM -> normal iOS binary * AOT = ahead of time compiler - like JIT, but... before it's needed. There is a linker step in there to remove a load of stuff too. Works _great_.