I've got a Cubieboard a few weeks back. I started it off with Linaro (Ubuntu) 12.06. 
Today I started to upgrade the OS to 12.11, which surprisingly came with ghc 7.4.2.

And ghci magically works too.

Here are the links

http://www.cubieboard.org

sudo apt-get install update-manager-core
sudo apt-get update
sudo apt-get upgrade
sudo do-release-upgrade

Regards,
Kenny