Xmultiple has released the X-Power 1, an iPod and iPhone USB cable that can charge a device's internal battery without being plugged into a computer. The unit features an AAA-size, lithium-ion battery that provides 20 hours of additional playback time for an iPod should the device run out of power, while iPhone 3G talk time is claimed to be increased by 4.5 hours. The unit also functions as a stan
