I got my KhoMo back cover in today. I really like it. The material feels nice and all the ports line up perfectly. The camera cutout is a little off center, but it's not a dealbreaker. It pairs well with the Apple smart cover, but you can tell the smart cover was not designed to be used with a back cover. The edge of the smart cover doesn't extend past the back cover so it's hard to open from the side. I either have to slightly push the smart cover over a little with my thumb or open from the lightning port cutout instead. Overall, I am very pleased.
What case is the blue case?