For skeptics. Google Glass is a solution to a problem that hasn't been properly identified. But sometimes techonology can work backwards.
Google Glass is integrating a new music search feature that will bring music into users' lives in ways that we didn't know we wanted. From ReadWriteWeb:
The new Glass music search service will feature music matching by listening to ambient sound, and music playback ... all controlled by voice. To avoid playback from bothering people nearby, Glass will also have earbuds through which to listen.
Great concept, but not ready for prime time...yet.