Looks like they are putting together a long arm that uses radius arms in front and a nice clean 3 link in rear. It's hard to tell but it looked like the Radius arms had johny joints at the frame, also indicative of johny joints were some limiting straps tyed into the front control arms. Looks like a really clean kit, wonder if any one else has seen it in person....

 

I am waiting to see it as well. I have their long arm system on my XJ and it works very well. I am sure the JK system will be excellent, but only time and trail time will tell.