I'm very happy to announce the first Hackage release of the new Network.Transport layer and of the new implementation of Cloud Haskell (Control.Distributed.Process). The relevant packages on Hackage are
The abstract Network.Transport interface
TCP instantiation of Network.Transport
The new Cloud Haskell implementation
A simple backend for Cloud Haskell (peer discovery; master/slave nodes; centralized logging)
The easiest way to get started is to have a look at the minimal example at the top of the Haddock documentation of Control.Distributed.Process.Backend.SimpleLocalnet and then check out the Cloud Haskell API as described in the Haddock documentation of Control.Distributed.Process. The original paper about Cloud Haskell ("Towards Haskell in the Cloud") is a good reference too, of course, although the API has changed slightly.
This is still very much a beta release, and some aspects of the APIs may still change, but if you're interested we'd appreciate if you could install these packages, play with them, and report problems or suggestions for improvement.