Monster Watts (http://www.MonsterWatts.com) has introduced the Hybrid Solar Battery Case for the iPhone. It combines a solar panel charger with a rechargeable battery in a thin, protective case made of ABS material.
The Hybrid Solar Battery Case comes in black or white and can be personalized with replaceable color bumpers. The hybrid charging design automatically charges the 2400 mAh rechargeable battery whenever it’s under sunlight; it can also be charged from any computer or standard phone charger via the built-in USB port. All buttons and ports are still fully accessible.
The suggested retail price of the Hybrid Solar Battery Case is US$118, but in cooperation with http://www.Vivealive.net, it can be purchased for $83 and that comes with free shipping within the USA for the month of June. That promotional price is only available via this link: http://www.vivealive.net/Hybrid-Solar-Battery-Thin-Case-For-iPhone-4-and-4S-White-MWTCIP4-W.htm?coupon=SOS15 .