Leaks from within the electronic component supply chain have lead to reports that contract manufacturer Pegatron is set to build up to 15 million of the upcoming thinner and lighter iPhone model.
Based on sources within the component supply chain, the DigiTimes reported that the phone would ship in September and "does not seem to have any major update from the iPhone," lending weight to rumours of an iPhone 4S launch with modest specification improvements.
A separate report appearing in the Wall Street Journal agreed that the phone is expected to be similar to the iPhone 4 but added that it's expected to be "thinner and lighter with an improved eight-megapixel camera."
The reports also suggest that the iPhone 4S, as some tipsters believe it will be called, will be launched in September.
Manufacturers have also complained of poor yield rates on the iPhone 4, given particularly challenging construction techniques. The Journal said that similar manufacturing yield issues pushed back the launch of the next-generation iPhone, originally intended for the summer.