I've got a 2010 RT and gave been gazing longingly in the direction of the 2011s... but in my opinion there's not enough there to make me take the bait...
The shocks... raise your preload one notch and your handling improves a wghole bunch! Much less body roll...
Air management... lower the windshield on a 2010 about 2 inches and that's the height of the 2011 model. Now the side deflectors have also been changed to help with the aerodynamics (And save fuel!), but those are just parts that could easily be swapped over to a 2010 model...
Actually the 2011 shocks could be swapped over also if the mood struck...
I'm staying put, but the fun is in the shopping anyway!
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2010 Blue RT Audio & Convenience model Se-5 transmision. Dealer-added foglights, accent LEDs and extra speakers. Some RTS chrome windshield, front spoiler and top trunk trim, RTS frunklight and frunk liner, Top Trunk liner, Chrome lower air deflector, fendertip LED bulbs and ISCI floorboards added by yours truly...