POP is a massive, attractively designed, rechargeable battery that can juice up to four gadgets simultaneously via cords that retract into its base. At its full load of 25,000mAh of power, according to the manufacturer, POP can charge as many as 10 iPhones before needing to be plugged in itself. The battery supports Apple and MicroUSB devices via a single, converting adapter cable. $129 gets you one.
Status: Still open; goal met.