Mophie must be ecstatic. As the first iPod/iPhone accessories manufacturer to nab the coveted “Works With iPhone” seal-of-approval, Mophie’s Juice Pack Battery Extender is likely to be the first sold in Apple stores and such. With an LED battery indicator on the back, similar to that found on Apple laptops, combined with long-ass battery life (24 hours of additional audio playback, 250 hours of standby time), Mophie could easily see increased sales thanks to a single badge on the front of its box.
Non-slip finish, fits your iPhone like a glove and goes for $100. If you use your iPhone as your primary PMP, this is probably an invaluable addition to your daily tech arsenal.