If you've owned an Apple iPhone 3GS, 3G or still have an original iPhone, I don't need to tell you that one of the constant hassles with the phone is battery life. It's better in the newest phone, but everyone who has an iPhone seems to have their own strategy for minimizing battery usage, ranging from "don't use the 3G network" to "disable wifi" to "turn off everything, especially bluetooth". I leave everything enabled on...

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