The problem with fancy new programming languages is that no big company is willing to back it and then actually use it (this is the most important step). But languages without backing/usage go nowhere and then get donated to the apache or eclipse foundation.
You sure about that? Sylvan Clebsch [1] -- Pony's creator -- is now part of Microsoft Research [2], has been working on a distributed actor model, and is presenting on Pony at QCon London next week [3].