3DBoard makes iPhone homescreen icons look 3D without glasses
3DBoard is a somewhat gimmicky jailbreak tweak that utilizes your iPhones accelerometer to create 3D looking icons. How does it work? The developer hasn’t specifically said, but it looks to me that 3DBoard adjusts the location of the wallpaper background and shadows in relation to the icons based on movement, which gives the appearance of the icons floating over the iPhone screen.
3DBoard will be on the Cydia store soon for $4.