Just a day after reporting that its consumer electronics revenue would drop more than expected in the second quarter, presumably due to weakening iPad mini demand, Apple manufacturing partner Pegatron has announced that it will boost its workforce by 40% in the second half of the year. The significant increase is fueling ongoing rumors of a lower-cost iPhone, as the firm has been reported to be handling production of the device.Pegatron's Chief Financial Officer Charles Lin told Reuters on Thursday that 60 percent of the company's 2013 revenue would come from the second half. He declined to comment whether the cheaper iPhone was a