The Mono framework[1] has been pretty popular in some circles for years now, so I imagine a decent amount of adoption can be expected once .Net Core proves stable.<p>1: <a href="http:&#x2F;&#x2F;www.mono-project.com&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.mono-project.com&#x2F;</a>