Wish you could get a little more battery power out of your 3G iPhone? The Mophie wraparound battery extender is expected to start shipping at the end of the month and will provide up to 6 hours of talk time and 350 hours of standby time for your handset. The battery extenders are available now for the original iPhone with pre-orders available for the 3G model at $100 a pop. [Mophie via Gizmodo]