<flame war ahead> For those not adicted to slashdot, see here <http://news.slashdot.org/story/15/02/04/0332238/microsoft-open-sources-coreclr-the-net-execution-engine> . Licenced under MIT <https://github.com/dotnet/coreclr/blob/master/LICENSE.TXT>, plus an additional patents promise <https://github.com/dotnet/coreclr/blob/master/PATENTS.TXT>. If Microsoft continues to go in the direction of the OSS as before, I suspect we just might benefit from some good quality components as individual services on a completelly open source stack.