[thepp1983]

Ximian and then Xamarin implemented it with Mono.

Yes I am sure that it takes a lot of time, but anyone who is willing and able can do it there is no-one stopping anyone from doing it.

The spec is open, the source code for pretty much everything is now open and is sitting on github, it has been ported to MacOS, iOS and Linux and it runs on both x86 and ARM what more do you people want?