Our guess is that these are iPhone 5 screens because of the larger shape of the home button. We still don't know if the home button will be capacitive or a real hardware button as we currently have, but what we have heard is that it will be bigger. We're not sure if the factory worker in the picture is male or female to make out the probable size of his or her hands, but the screens do seem larger than what we currently see in the iPhone 4. Probably the only thing we can't seem to match with current rumors is an edge-to-edge glass screen, but hopefully more of these images will surface with the details.
Source: MIC Gadget
