> You can run Ocaml on the Raspberry Pi for one.

Huh, I don't have a pi, but judging (blindly) by:

http://www.haskell.org/haskellwiki/Raspberry_Pi

That should be "You can run the Ocaml toplevel on the Pi"?

Also, Raspbian Wheezy includes a rather old GHC which is troublesome if you want to install packages from Hackage and backporting a newer GHC doesn't seem to be possible, it crashes some hours into the build process (which also takes ages).