This seems like a bastardization of FP. I've been studying Clojure for the last few months and I'm amazed at the elegance of Lisp syntax. Maybe the perens have corrupted my brain, but F# just looks really ugly to me. It looks like Microsoft is trying to spoon feed it to C# developers, which is ok I suppose, but I don't think that people are really going to grasp the underlying concepts of FP without letting go of a lot of what they've learned in the imperative world. A familiar syntax can actually be an impediment in this effort, as it creates the impression that two expressions are equivalent when they really aren't.