Since someone in this household is playing the crap out of this game right now, I thought this might be interesting reading.
The New York Times has a very interesting piece on the invented language of Tho Fan for Jade Empire. The 2,500-word language was created in four months for about $2,000 by University of Alberta linguist Wolf Wikeley. The Ph.D. candidate even created a history for the language and then tested it out by translating the first chapter of John's Gospel into it. It's a great read, make sure you check it out.