disappearing sprites in air 3.0 for ios? Not happy

In my program I am having sprites disappear and reappear seemingly at random, usually sprites in the background. This only happens on air 3.0 for ios. It works fine in flash player 10 for the pc.

Also 2d rendering is not as fast as it was on air 2.6. And now I no longer have the option of using air 2.6 because it crashes because of a memory limitation that I am unable to get around. I cannot use air 2.7 because the timer class is all screwed up fires several seconds after it is told to.

Will 2d rendering ever be even half decent? The ipad its just aweful.

Air for android is so slow it is just unreal. Flash player 10 is a lot smoother for android for my program except it is no longer reliably firing mouse up events. Besides that there is no way to monitize my program with flash player so I'm kind of screwed there too.

Will there ever be a version of air for mobile that doesn't have a bug that is fatal to my project?

Adobe, it is really really looking grim for me. I've supported you with cs4, cs5 cs5.5 each step along the way thinking that maybe the next version will not have some aweful project destroying bug. I've put in years on this program. I can't stop now like a mad man that won't accept reality.

Air is doomed.