Apple.pro have recently published a photograph of what appears to be the back of the next-generation iPhone. The image shows a white shell with three holes – logically it is assumed that a camera is top left with a separate flash unit sitting in the opposite corner.

However there is a further hole within the Apple logo, but it is not clear what is the purpose of this extra hole.

Another rumor suggests the iPhone 5 will feature an 8-megapixel camera with a separate flash unit. DigiTimes, quoting industry sources in Taiwan suggests that Largan could receive possible orders from Apple in the third quarter of 2011, which seems to confirm the rumors about the launch of the next-generation iPhone taking place at the end of the company’s 2011 fiscal year (which concludes in late September).

We already know that Largan supplies 5-megapixel lenses for the iPhone 4, and that Largan was selected as the sole supplier of lenses for the iPad 2.

Further, Ming-Chi Kuo, an analyst with Concord Securities told AppleInsider several months ago, that the iPhone 5 will feature an 8 megapixel rear camera. But the presence of the third hole still remains a mystery – more food for the rumor mill.