Apple Peel 520 to go from pioneering phone-maker to competition. Enter the tPhone, an also derivatively named and similarly positioned device that attaches to an iPod Touch and turns it into a phone. This one packs a 1,200mAh battery, 50 percent larger than the Apple Peel, but offsets that by existing as a "super-duper thick" hard case that clips on to the Touch. It naturally also offers a SIM slot and a dock port, augmented by a handy microUSB port on the side. It'll set you back ¥700, about $100, so you're paying a bit of a premium over the $75 Apple Peel. Worth it given the extra bulk and cost? That depends: just how big are your pockets?