Digitimes seemingly confirms a previous report that the next generation iPhone has already started production in China. 
Pegatron has begun production of a new version of the Apple iPhone at its factory in Shanghai, eastern China, according to industry sources in Taiwan.
The newspaper cites "industry sources" for the knowledge.
Earlier this month, Japanese blog Macotakara first reported that the next generation iPhone had already gone into production. These reports do somewhat conflict with a BGR report that the next generation iPhone is still in an engineering verification test. BGR believes that the new iPhone will carry 1GB of RAM as well as both LTE and NFC support. Regardless, it seems there are ongoing signs that the next iPhone is approaching.
The next generation iPhone will likely launch in the September or October -- approximately one year after the launch of the iPhone 4S.
[Source: MacRumors]