ReNu Modular iPhone Charger
The problem with most built-in solar gadget chargers is that it just doesn’t make sense to stick your pricey phone in the sun for the whole day while you wait for it to charge. But the Regen ReNu modular solar panel takes care of that issue–the combination solar panel and battery pack attaches to the back of an iPod/iPhone dock or USB device for easy access to solar power. When you want to charge the panel, just remove it and place it near sunlight!
See more at INHABITAT.