The Downfall of Imperative Programming

[Froglegs]

   I like functional languages, but the only one that seems to 
have much support is F#.


  I've used TBB Flow Graph in C++ and found it to be a major 
improvement over straight parallel algorithms/tasks/message 
passing etc which seem to be the norm(like in D).  Expressing 
dependencies between separate nodes was super easy.



   Do any other languages have support for flow based concurrency 
like C++/TBB?