MetalCompass has announced the opening of pre-orders for his pistol Xappr Gun. This gun accommodates the top of the iPhone or iPod touch. It is used to aim more easily, and shoot the target. Obviously, you must have a compatible application so that the trigger is working correctly.
So far, four applications are compatible: Invaders AR , AR Wars , Spray'Em and ATK. The Xappr Gun is currently sold about 30$, add almost 15$ for shipping to Europe, the United States or Canada. The gun will be delivered in the month of June. It is also compatible with Android and Windows Phone.