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Novothink's Surge for iPhone and iPod Touch is the first solar charger to be certified by Apple. This device has its own internal battery and LED status indicators, in addition to a full-fledged solar panel on the back of the unit.

Surge allows full access to the iPhone when docked, with openings to the speakers, USB port, and camera lens. There's even a cord included to hang the iPhone from a backpack or your wrist while outside to facilitate charging.
Novothink will also release a free iPhone Solar Planner app that will calculate the hours of sunlight needed to keep the Surge and iPhone charged based on usage. The 1500mAh lithium-ion battery in the Surge actually has more capacity than the battery inside the iPhone.
Surge is compatible with the iPhone 3G and 3GS, and will hit shelves later this month at a retail price of $69.95. Several colors will be available, as well as an optional belt clip.