Robert Pointon, of Heriot-Watt University, has been working on Glasgow Distributed Haskell (GdH): GdH combines the multiple processes of Concurrent Haskell with the multiple processing elements of Glasgow Parallel Haskell (GpH). In summary the language is a minimal super-set of GpH and Concurrent Haskell and so maintains full backwards compatibility.
To support distribution we have only introduced the notion of "location":
We have used GdH to write applications which include: a distributed file server, multiplayer games, and parallel skeletons.
In terms of ongoing research, GdH is actively being used by the group here for looking at:
Oh, and the implementation is almost ready for public release!