Beam is an app that allows you to collect points on the move from registered billboards. For every registered billboard that you see, you are awarded beam points, based on your location. Points you collect are saved in your device, which you can then verify and redeem from the sales outlets of the billboard owners. Note: Continued use of GPS running in the background can dramatically decrease battery life.
||Compatible with iPhone 3Gs, iPhone 4. iTunes account required.