Improving touch screen controls

[lschmid83]

I have received a lot of feedback from users saying the touch screen control are not the best they could be. I would like to redesign the controls to provide a smoother experience for the user based on what other developers use in their own games. One suggestion I received was that instead of the d-pad and buttons being fixed in place they could move to the position where the user first touches the screen. It would also be great to add some haptic feedback for collisions or power-up collections.