My reliable Chinese sources told that, new iPhone has started manufacture phase, then "iPhone 5 cases" are being leaked at Alibalba.com. This source told also, "iPhone 5" which had been leaked in May were prototype (via 9to5Mac) for design test, and producing new iPhone has several different design in detail.
The design, which were told by this source, blackface of this new iPhone has naked aluminum surface and partially glass covered part. And a small hole, which were seen in between LED flash and lens, was gone away or invisible, this source told.
A recent report from Know Your Mobile claims that Apple will announce the 'iPhone 5' on August 7th; however, this is earlier than the widely expected September/October timeframe.