Oz

What does /prog/ think about Oz? I was told that I'll like it if I like Haskell.

I like it a lot, I just wish it had a better library, support for at least one of default arguments, operator overloading and varargs, and had a faster implementation.
I have no idea what connection anyone'd see with Haskell. It supports lazy evaluation, I suppose, and it is a bit different from mainstream.
Anyway, read CTaMoCP.