Wind power doesn’t only come from towering turbines. The HYmini from miniWIZ is a handheld gadget that collects wind energy to recharge portable devices. (The unit can also charge from an additional solar panel or hand crank if there isn’t enough wind to turn the fan.) It stores enough juice to charge a 5-volt device, such as a cell phone, MP3 player, iPod, PDA, or digital camera. The catch? To use the wind power you must get movement from the fan. While you can set it on a picnic table and hope it’ll get enough wind blowing on it to bring your cell phone back from the dead, the device works better when there’s faster action, like when it’s mounted onto your bike or strapped to your arm while you’re out for a run. It’s also an eco alternative to plugging into the wall or trickle charge via a USB connection.