I'm not sure that i'm the right one to answer this
message but ... Haskell was one of many languages
i tryed before squeak whenever i liked the idea 
i find implementation too complex (i'm possibly 
wrong but it seems to me like PL/I of functional
programing )It's interesting to think for "mixed"
VM but it is not something that could happen next
6 months (-haskell's own complexity is the problem
once again)
I hope other answers were more useful ...
i'm really sorry that my is not