Apple is planning to bolster its in-store iPhone sales in the United States by allowing customers to add pre-paid or month-to-month plans when purchasing full-priced, unlocked iPhones, according to a source that spoke to . Currently, iPhone customers who pay the full price to purchase unlocked iPhones from Apple retail locations must visit a carrier store or use a pre-activated SIM card to get service on their phones, but following the policy change, those plans will be available directly through the Apple Store. Apple Stores will stock AT&T GoPhone pre-paid activation kits and T-Mobile SIM cards for both T-Mobile and AT&T pre-paid plans, with employee training taking place over the next few weeks.The new pre-paid and month-to-month plans may be available at Apple Stores during the last week of June and are likely part of a push to move more device sales in store. Last year, Apple CEO Tim Cook that 80 percent of iPhones are sold at third-party locations while 20 percent are sold in by Apple, a figu
