ExEn is a new project that an American developer is working on and which will bring us the opportunity to port games for Xbos 360 and Windows Phone 7 directly to the iOS or Android platform and Mac OS X. To begin with, the program will allow you to port games for iOS and Silverlight but in the future the developer will also implement compatibility with Android or Mac OS X. ExEn will allow the porting of any games made using Microsoft's XNA platform, so you need quite advanced knowledge to port the games.
The first public preview of ExEn was released 2 days ago, those interested can download it from here and you can study the necessary documentation. If this project will really be usable, then the "gates" of porting many popular and interesting games to the iOS platform will be opened. Something like this probably had to appear publicly a few years ago and be really usable, and I hope that ExEn gives developers the tools they need to port games to any platform, not just iOS.
