Most phone chargers keep sucking up the juice even when your phone is fully charged. It's a big ol' waste of electricity. That's not the case with AT&T's new ZERO Charger, which is designed to stop all that wasteful chargin'.
It does this by stopping its energy draw as soon as the device plugged in is all charged up. It works with any USB-chargable phone, so you can just buy it once and use it with everything. And it even comes in a recycled-cardboard container! They really did think of everything. Look for it to drop in May.