This Dandy Gadget: i.Sound will unveil iPHONE 3G and iPOD compatible 2-in-1 charger & backup battery at CES 2009 which has smallest design of its kind.
This gadget features a high capacity 1000mAh polymerized lithium-ion battery that provides up to 30 hours of additional music, 6 hours of video or 3 hours of talk time. Included is a USB charging cable and USB AC adapter which can be used to charge the iPhone/iPod and battery pack simultaneously. And, also compatible with iPhone, iPhone 3G, and all iPod models with a 30 pin connector.
This new battery charger cost you for $49.99 included the charger and backup battery, USB AC adapter and a retractable USB charging cable.