I tried Haskell but it doesn't cut it for me. So I switched to Go and have been very happy so far. I dig channels and co-routines. Type inference is great. I still wish some generics would happen in 2012. The lib is great for doing what C libs do in a more readable way.

Debian (and thus Ubuntu I assume) still uses static linking of haskell. I hope this will change though. I think the issue is finding a way to avoid breaking binaries when haskell libraries are upgraded, since they don't have sonames like regular libraries do.