I think, last I knew, at least with CocoonJs export, the whole game is loaded all at once, and if that exceeds the ram (heap) of the device, it won't run.
Is this still the case.. If so, any clues as to when that might be improved? (meaning when The game will be able to load one frame at a time as needed)
I'm working on fairly large games for my clients and they'll never make it onto Ipod touches etc if this remains the case.