> I'm still waiting on something like OTP for Haskell though; Erlang takes the cake there simple because of OTP

Have you looked at cloud haskell? e.g., http://www.haskell.org/haskellwiki/Cloud_Haskell

It's still a work in progress, but it's aimed at some of the same distributed use cases as OTP (AFAIK--I know relatively little about OTP).