http://13thlab.com Ball Invasion is the first (and only) iPad application to use the NASA-invented Simultaneous Localization and Mapping (SLAM) technology to build real-time 3D maps of the environment as you move the iPad's camera around. This is only possible with the iPad2 dual core A5 CPU.
The objective of Ball Invasion is to shoot malicious and cunning balls hiding in the real world, visible only through your iPad2's camera. Unlike other Augmented Reality games, Ball Invasion doesn't require printed or known markers, but instead tracks the environment around you.
The game is available for download on App Store (iPad2 required)