Mono developer Miguel de Icaza wrote on his blog today, "Microsoft's next generation web stack (ASP.NET vNext) is open source from the ground up, and runs on Mono on both Linux and Mac."
.NET vNext is Microsoft's next major version of the .NET Framework and uses the new "Roslyn" C# and VB compilers that are open-source. The next version of .NET has a focus on mobile-first and cloud-first development support. .NET vNext is supported on Linux and OS X via Xamarin's Mono software.
ASP.NET vNext meanwhile is designed to make web apps "easier to build and perform significantly better." ASP.NET vNext features cloud-ready support out of the box, new high performance and high productivity APIs, fine-grained control, and other optimizations. Microsoft is supporting ASP.NET vNext under Linux via Mono.
Those wishing to learn more about these latest Microsoft announcements can visit the MSDN blog.