Awesome pictures! I'd be doing a lot of drooling and dreaming if I were there.
I'm really digging the 4 door JKs. I was excited about those when they came out. I'll be interested to see how they perform as the years go by.
My biggest concerns re: the JK would be the viability of ChryCo (though they could easily sell the Jeep division to another buyer who would jump at the chance to acquire them) and the reputation of the minivan-sourced V6 engine.
I also wonder whether the multi-piece roof will last very long. But honestly I could see the 4 door JK replacing the Liberty in the Jeep lineup. Just put a fixed steel roof on it and there you go!