Touted to be “a functional representation of this design”, it is powered by Apple’s software testing suite known as SwitchBoard, where it is used to test the device’s functionality. The seller claims that normally, such prototypes have been disabled by Apple, but somehow he/she managed to get hold of a fully working model. The battery has been replaced by an OEM iPhone battery since it was claimed to have been removed by Apple. Are you interested in a slice of potential history? Also, don’t you think that the logo at the back of the iPhone 4 prototype depicts a Pokeball?