I just saw this article out there. Looked pretty cool and would've contemplated getting one to hook up to the E until I saw the 10K price tag. Though I've never really looked closely at camper prices.
http://www.insideline.com/jeep/jeep-and-mopar-introduce-off-road-camper-trailers.html
http://www.insideline.com/jeep/jeep-and-mopar-introduce-off-road-camper-trailers.html