Originally Posted by kamelito
I don't know if the Iphone touch screen is sensitive enough but to me the joystick should be handled only by rotating your thumb in all 8 directions without moving it (it stays centered to your finger). If the screen permit that, it'll be easier to move a main sprite. If you've to go back and forth its over.
Exactly what I was thinking. Once the user gets used to the controls, it should be intuitive.