Should App Developers Go For Xamarin?

Free ebook: Creating Mobile Apps with Xamarin.Forms, Preview Edition 2 

Infographic: The Rise of Mobile C#  

The Best Games Done With Xamarin 

Creating Mobile Apps with Xamarin.Forms Book Preview 2 

Cross-platform C#, Project generation for every platform. Define your project content once and compile code for every platform, in any IDE or build system, on any operating system.