The features in 2007 were indeed new. Doubletree did not change suppliers for the hydraulic pumps in 2007. The supplier was (and still is) Lippert components -
http://www.lci1.com/
Doubletree did have an engineering change in 2007 for the hydraulic pump. It is a pump that is specifically designed and engineered for Doubletree.
Here's a link for the 2006 brochure -
http://www.5thwheelforums.com/forums...light=brochure