In digest #69, Hugh Perkins mentioned the coolness of Erlang-style message passing concurrency. It just so happened that I was playing with that yesterday, so I figured I'd post a link to a 'ping-pong' thing that I based on an example in the erlang tutorial. I figured "Haskell has lightweight threads, higher order functions, and pattern matching. No reason that with a little bit of STM and some monadic convenience we can't do message passing." It's really simplistic and doesn't parameterize message type (well, not this version; that version is still in the works), but I thought someone might find it amusing just the same. http://hpaste.org/2174