Any experience/advice regarding what versions of iPhone devices to target for a physics/action based game in terms of performance? Are there developers now for example making games that will target only iPhone 4S and above, and NOT target iPhone 4 and below? (i.e. not attempt from a performance point of view to make the game snappy on these older versions - i.e. having to put in additional time to optimize)
Note/FYI: This specific question complements a performance related issue/question I have at: http://forums.coronalabs.com/topic/39882-performance-a-little-sluggishjerky-on-older-phones/