At Xamarin Evolve this morning, .NET Foundation Director Miguel de Icaza officially open sourced the Xamarin SDKs for Android, iOS, and Mac and contributed them to the .NET Foundation under the MIT license. This includes native API bindings for iOS, Android and Mac, the command-line tools necessary to build for these platforms, and Xamarin.Forms, our popular cross-platform UI framework. Nat Friedman, Corporate Vice President, Mobile Developer Tools at Microsoft commented the following,
Watching Xamarin co-founder and open source pioneer Miguel de Icaza announce this onstage was a proud moment for all of us. The future of native cross-platform mobile development is now in the hands of every developer.
Go to open.xamarin.com to get involved.