New version of PongXtreme is coming soon (hopefully in 2 weeks). We have upgraded the paddle control to track the movement of more than one finger.
This means that you can keep both your thumbs on the screen and move them to control the paddle. There's no more need to tap on the screen beforehand to switch control between your 2 thumbs. Now, let your fingers be wild and free, and break your high score in the Hard level.
Stay tuned... Will post when the version is out!