Santo has unveiled the latest in its line of STK iPhone accessories, the STK iPhone 3G Power Pack. The device is designed as both a premium quality genuine-leather flip-case, and a 3G power pack with a rechargeable Li-ion polymer battery. It offers a maximum of 300-hours of extra standby time, 7-hours of talk time, or 24-hours of music playback for the iPhone. To charge the device a mini-USB cable
