This thing is cool! I wasn't sure whether I should start the thread here or over at Sociocide, but this thing is totally exercise related, so i'll do both!
"The Finis SwiMP3 is fully waterproof and can be used with all competitive swim strokes, water therapy or lap swimming. It's the perfect swimming mp3 player."
An mp3 player that is fully waterproof, and conducts sound through bone vibration.
I must have one.
I have used a bone conduction walkie-talkie system before, it is rather freaky to have a disembodied voice coming from nowhere while your ears are uncovered.