3D Stereoscopic technology has been the hottest topic in recent years. This time, we introduce you to Relievos, which can turn flat photos into 3D stereoscopic effects. The stereoscopic effect here is not the red-blue 3D that we buy at the supermarket, but rather true 3D models in geometric space. To put it in elementary school math terms, a square becomes a cube. With the gyroscope sensor on the iPhone 4, users can observe the side effects of the photo by rotating their phone within the iPhone 4 interface.