A Chinese retailer site iDealsChina claims to have obtained the engineering images of the iPhone 5. The device looks almost identical to the iPhone 4 except that the screen is much wider and the bezel is thinner towards the sides.
The site posted the following message on their site:
We just got what appears to be mold engineering drawings for iPhone 5. These would be used by case designers to create plastic, TPU, aluminum, silicone and leather cases. A while back we hear rumors that iPhone 5 would have a curved back but these images show iPhone 5 with the same form factor as iPhone 4 but with an edge to edge screen.
iDealsChina is also following up some the iPhone Nano rumors so we recommend you check them out. Apple is expected by many to launch the iPhone 5 and iOS 5 this summer.