For those about to rock out (in direct sunlight, at least), Eton won't just salute you, but offer you more options for your environmentally-friendly moshing. At this year's CES, it's launching two more solar-powered Bluetooth boomboxes to compliment the Rukus that arrived at 2012's show. The Rugged Rukus offers the same hardware as the flagship, but wrapped in a sturdy IPX-4 shell that'
