Mophie has introduced its latest accessory for the iPhone 3G, the Juice Pack 3G battery extender. The device features a lithium polymer battery that is claimed to offer an additional 350 hours of standby time, 6 hours of 3G talk time, 12 hours of 2G talk time, and 6-7 hours of internet use. Rather than drain the internal phone batteries before switching to alternative power, the pack drains the ex
