iPhones. Blackberries. iPads. Droids. iPods. Regardless of what your mobile device of choice is, they all have one thing in common—the battery is never big enough. Sooner or later, you’re going to need a tether yourself to a wall outlet for a while or there’s not going to be any Angry Birds in your near future. Or not. The Quirky Ray Solar Charger is probably the best solar charger we’ve ever seen. There’s a compact battery with enough juice to charge a cell phone, a built in suction cup to attach to the window of the car or airplane and the built in kickstand conveniently holds your device’s USB cable. All of this in package no bigger than a Rubik’s Cube.