Thanks! Spell errors corrected!

When I said there is no heroku for Haskell it because it is not official. Furthermore, do you have to use a 64bit architecture when compiling (just curious)? I might try it myself.

And I even think that the argument against the number of Haskellers is in fact a force instead of a drawback. It filter passionate people.

By external APIs, you mean that it would be difficult to write a simple "connect to twitter/facebook" application? Could you tell us about any bad experience you had?