I picked up my 2012 order last week and am thrilled with my purchase! I had a chance to take the Jeep to some wine country in Temecula this weekend, and I averaged 20.6 MPG roundtrip with the HEMI.
One disappointing detail is that my Jeep did not come with the saddle stitching on my black dash like all the 2011's I saw; mine is white. Not a big deal, but that little ascent was nice. Here's some pics: