iDealsChina posted several "mold engineering drawings" for the fifth-generation iPhone.
"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."
The images don't reveal much, but the interesting part from their description is that these images are said to be case mold drawings.
Apple's iPhone 5 will also include a dual-core A5 processor, according to code in the latest iOS builds, in addition to enhanced voice control and iOS 5. The iPhone 5 is expected to be revealed at WWDC 2011 with a launch date in either June or July.