How do I create an application that works on both the Windows 7 Phone and IPhone?

Question

It is clear that Mono Touch is part of the solution as it allows C# code to run on the IPhone, however Mono Touch wraps the IPhone API so does not provide a common API.

Answer 1

MonoCross is a Model-View-Controller system that sits on top of MonoTouch, MonoDroid and SilverLight. So letting more of the UI logic be in common.