It is a bit of a shame that there isn't a more "official" and standard version of the Ubuntu 14.04 distribution for the Cubieboard/Cubietruck that works out of the box - having said that, the Ubuntu option isn't even there for the Raspberry Pi, so swings and roundabouts I guess.
Aside from not being able to switch this image to SSD, and the tweaks already recorded here to get it up and running, I've got to say that the install has been fantastic for me on my Cubietruck. I've had it running as my main mail server for a few weeks now, and have had no issues at all - very pleased with the performance gain over the Sheevaplug that it replaced too.