Normaly without anything you can't do that, Andoird missing iOS APIS.
But if we being geeky.... in theory.... It's actully possible, and Wine proofs that (Windows API for linux that can run Windows executables in Linux envriament on 86x machine), but it would require hell lot of work and backward enginiring, Wine is in development since Win3.1 times and yet it does not work 100% right. In theory also, it would be much more easier then Windows <-> Linux situation since both iOS (which is based on Darwin kernel that is fork of FreeBSD) and Android (which is practicly... Linux it self with Google's java platfrom running on top of it) are unix-like systems that follows same specifications, which means they have same low level calls so they would need some rederections (normally you can compile same C++ code on both systems and it will work, ofcorse if you provide required envriament).... but major problem would be iOS stuff that is in higher level which is not available for Linux and we don't have a source code ;]