Google glasses. Source
Some new speculation would have us believe that Google is going to implement bone sound conducting technology in their upcoming Google Glasses, the augmented reality glasses that will allow users to access the internet and much more all through a pair of glasses. This bone conducting technology will allow users to listen to music without the annoyance of earbuds by sending vibrations through the skull and into the ears. I, for one, think this is a good idea, but we'll see what eventually happens.