I've gone from a 2001 RAM 1500 Sport/Off Road 4x4 package to a 2004 RAM 1500 SLT 4x4 package to this 2009 RAM 1500 SLT 4x4 package. I've watched Dodge improve everything in these trucks from one model year to the next. I've test driven all of the competition offerings each time to what was out there. I can tell you with no hesitation, this is the cream of the crop as far as full-sized pickups go.
The whole thing is my favorite feature!
The only improvement I can think of is better fuel economy - but that goes for every vehicle on the road right now!