As speculation about the first launch of the iPhone reaches fever pitch, it’s time for new speculation about the second version.  According to reports in two Taiwanese newspapers Tuesday, the Commercial Times and the Economic Daily News, manufacturing powerhouse Quanta Computer has landed the contract to build a second-generation iPhone for Apple starting in September. The first version isn’t out yet, as anyone with a pulse is probably aware, but the next version requires a “different outer design,” according to numerous translations of the reports.