I love my iPhone, thus I was excited to discover a solar iPhone charger approved by Apple. The Surge Hybrid Solar Charger for iPhone 3G and 3G S uses the sun to recharge your gadget. GreenUPGRADER explains:
Unveiled about six months ago, the Surge is a lightweight, hard-shell case with an integrated solar and battery system that means you could spend a lot less time charging your iPhone and worrying about its dwindling battery life. With a two-hour sit in direct sun, the Surge will give your iPhone about 3o minutes of 3G talk time…
When fully charged, via sun or USB, the Solar Surge’s the lithium-ion polymer battery can effectively double the life of your iPhone or iPod Touch. The additional battery power adds a whole new dimension of freedom for iPhone users. As anyone who likes to run memory-sucking apps knows, iPhone battery life can evaporate right before your eyes.
I have not personally tried this solar case/charger, but I would love to. I am not sure where I would place my phone in direct sunlight to actually use the charger for two hours duration, but the concept is cool.