Monster Watts Hybrid Solar Battery Case for iPhone 4 / 4S by Douglas Tam — Kickstarter

Nice idea but I think the changeable wrappers are a bit of a gimmick and the photograph of the prototype makes it look a little plasticky for my taste. Might be ideal for a heavy phone user in a sunny climate, though.

> The Monster Watts hybrid solar charger battery cases combine a solar charger with built-in back up battery power in protective and stylish cases for the iPhone 4 / 4S.

http://www.kickstarter.com/projects/1213149932/monster-watts-hybrid-solar-battery-charger-for-iph