Haskell.NET

> In a sense, in Haskell there are too many points where the model wasn't going to work in the context of .NET and you get too much dissonance across the interoperability boundary in particular — actually there are some serious challenges in making it run well at all. That was definitely an interesting project and I think a few other people have tried the Haskell .NET, but we didn't continue with the project.

Что и следовало ожидать.