Back in June, it was reported that Apple was getting ready to launch an iPhone trade-in program at its U.S. retail stores, partnering with recycling firm Brightstar to give customers instant credit for their old iPhones to drive upgrades to newer models. According to the report from Bloomberg, the old iPhones would be refurbished and sold in emerging markets, lowering the cost of entry in those countries while preventing cannibalization of new device sales in Apple's established markets. There has been little in the way of update on Apple's plans for the program since June, but MacRumors has now received word from several sources reporting that Apple is indeed beginning to prepare its store employees