I'm looking for a way to listen to my audiobooks while commuting without obstructing my ears.
One (rather expensive) option appears to be the Tunebug Shake (a Bluetooth turn-your-helmet-into-a-speaker gizmo); however, I'm hesitant to spend $120 on a device made by a company which does all their consumer promos with skater-style helmets and doesn't answer emails asking questions about sound quality with vented helmets.
Another option would be a water-bottle speaker (I commute with a Camelbak -- this is Austin, after all -- so either of these mounts are fine). Obvious downside is positioning -- my two water-bottle cages are below and behind my ears -- and several of the commercially available devices are specific to Apple hardware (and the thought of buying an iPod rather than using my existing Android-based phone smarts a little).
Suggestions? Experience?