With Apple getting ready to debut two new iPhones on September 10th, the question of how many upgrades it can coax out of its current user base is one of many quandaries that will take center stage in the coming weeks. As it turns out, new findings released as part of a recent study bylending deviceConsumer Intelligence Research Partners have provide good news for Apple. According to CIRP, iPhone users are still the most loyal smartphone owners out there despite Android’s rapid rise. The firm’s study found that 81% of iPhone owners who upgraded to new phones between July 2012 and June 2013 bought another iPhone. That compares to 68% of Android users who stayed in Google’s camp when upgrading, AllThingsD

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