Time to dust off my old ML & Haskell textbooks?

The Visual Studio team at Microsoft is saying (see here http://blogs.msdn.com/somasegar/archive/2007/10/17/f-a-functional-programming-language.aspx for instance) they'll work closely with Microsoft Research to build support for F# into VS. Back in my University days I did a fair bit of ML so this will be like re-uniting with an old friend [:)].