Make the ball animations smoother
On my gnex, the ball briefly appears halfway before hitting the other side.
I have installed the application on my Galaxy Nexus (running android v4.1.2) and my Galaxy S Duos (running android v4.0.4) and the ball behaves the same way on both devices when it is moving. It disappears from the starting point and reappears once it is blocked by an obstacle with only one transitional image somewhere in the middle. It is more of a 'teleportation' than an animation.
It is not much of a problem anyway. The game is great as it is.
Strange, I tested everything on my Galaxy Nexus running Android 4.3. Animations are very smooth here.