Install Gnome 3

Best thing about linux is choice. Gnome3 is in repositories and can be easily added by a user on the Quickstart 2.x image if they prefer over unity. Cinnamon is probably a possibility as well. But IMO, one of the advantages of Unity (and the thing many lont time linux users dislike) is its simplicity.

Ultimately, I want to make it easy for people to choose a preferred desktop... and will address this in quickstart 3 -- postponed until then