If you’d concern very much about what-so-called the global warming and love to see everything goes green and environmentally friendly, here is the perfect mate for your lovely iPhone (and even other Apple handheld devices): the iYo Yoyo charger!

Talk about a GreenerGadget! Swedish designer Peter Thuvander has designed an induction-powered yo-yo charger for iPhones and other Apple handheld devices. Housing a lithium ion cell, and based on the OLPC crank and this dandy wind-up remote, Peter is betting that the physics are close to there. “The remote control needs only 30 cranks–which is nothing when you yo-yo,” argues Peter. He’s also thinking about what road warriors call “opportunitic charging”: “I think I’d at least use it as an emergency device for all the dead iPhone moments I have.”

Why does Peter create this? “To celebrate my new iPhone and the fact that darkness is looming over me. I´ve done this: An induction powered yoyocharger for Apple,” he said. “And since solarchargers don´t work at night or in Sweden half the year, this should be a smash hit.”

[Core77 via CellPhoneBeat]