Here's something to keep Michael Phelps entertained while he waits for those other losers to finish - a waterproof MP3 player. Phelps could lie back, lift up his size 28 feet and listen to the American National Anthem on his stylish Aquabeat, while he politely waits for for silver and bronze to splash their way slowly toward him. The Speedo player beats other so-called waterproof devices by being fully submersible up to a depth of three meters...