Xamarin and Xamarin.Forms

Miguel de Icaza, part of the board of directors of the .NET Foundation, publicly announced that Xamarin, Xamarin.SDK, and Xamarin.Forms, as well as the Mono runtime ports for iOS and Android, are to be part of the .NET foundation and open sourced in Evolve 2016. Even though these projects are not listed on the Foundation site, they can be found on GitHub under the common MIT license.