>>8
You're right -- a Python script is considerably slower than the equivalent Haskell script.
But a Python script running concurrently on a farm of servers with a distributed BigTable backend is going to be a fuckton more enterprise scalable turnkey solution that your elegant Haskell nomads being served out of your house. The choice of language is fairly insignificant; the point of interest is that they're opening up a free massively distributed environment for random people to do shit with.
And who knows, maybe a Haskell environment is scheduled for the future. I'd wager that depends fairly heavily on how extensible Haskell is -- despite being horribly slow, Python C extensions are easy as shit to write.