what mmo have been done in unity?

beside Fusionfall? or mmo that is free!

Im not sure if Dawn of the Tyrant is/will be free, but worth of an example. Dawn of the Tyrant Youtube

afaik Battlestar Galactica Online is Unity. All the functionality I've seen in it thus far is definately possible with Unity. The game is free, browser based and really good fun.

World of Temasek is unity based too http://www.worldoftemasek.com/