Incipio Feather - Currently does not support smart cover. New version limits your ability to remove the cover easily.
Xgear Enhancer - Strange cut-outs that leave more exposed than desired.
Joy Factory SmartFit2 - Even more exposed than the XGear, both top and bottom are cut out.
Enki Genius - Not out yet, and not enough details/pictures to determine if it will be good.
Aviiq Smart Case - Not out yet. Looks nice, but need to see more and no Navy color options (my smart cover color). Some will say pricey.
Marware Microshell - Who knows when they are finally going to ship. Limited color options, and no clear. Pictures contradict whether it's going to be glossy or rubberized matte.