iResQ is a site for iPhone support. Because of the work performed by the device, the company received the parts which are allegedly from the 4th generation iPhone. Of course, things change and the design can also be changed out before the final product. But if this were indeed parts of the next generation Apple iPhone then design changes are minimal.
As with the first model, LCD display is affixed to the touch panel, while 3G and 3GS two are separated. This is important for technicians repairing equipment that will raise the price to repair the screen because both parts will be replaced simultaneously. The front panel of 4G is about 6 mm longer than that of previous models. Over the speaker has a mirror surface which is perhaps the proximity sensor. If so it is located in a different place compared to previous models of iPhone.
If these parts are actually 4th generation iPhone then Apple clearly adhere to the old tested formula rather than to make radical change. Yet nothing is known with certainty and may have new hardware changes, however, specifies the expected major changes to the software.