I reopen this thread because Eject is light years ahead of everything else. OpenGL is amost working, the performance is amazing, and it seems that you are all forgetting that the main difference here is that this is an open source solution meaning that you can add whatever functionality you might need (iCloud, iAP, etc) it's being actively developed and there are commits from other programmers weekly.
I really hope Ashley will consider working on optimizing a little for this platform, C2 desperatly needs some good mobile games to showcase and this could open the door for a lot of them.
We are now at a pre-last update CocoonJS plus working Game Center achievements and leaderboard. 4 Days ago websockets have been implemented and OpenGL is already there (altough very rough) I see this going miles ahead of both AppMobi and CocoonJS in a couple of months, if you are serious about iOS invest time in this project, so far I was able to make all my games run in Ejecta, there is a thread here with the "instructions" scirra.com/forum/experiment-construct2-with-ejecta-and-gamecenter_topic64187_page1.html.