Hearing aids. Hearing aids that sync seamlessly with Bluetooth. It can really transform the way hard-of-hearing people converse on phones. Hearing aids whose

Hearing aids. Hearing aids that sync seamlessly with Bluetooth. It can really transform the way hard-of-hearing people converse on phones. Hearing aids whose battery life is supplemented by body heat (Battery life is currently ~1 week, and they represent the primary reason hearing aids are so big, even as small as they are). Smarter or more customizable software to adjust hearing aid ranges and frequencies. Right now I have to go into an audiologist, but it'd be nice if I could see my own hearing data and make minor tweaks without having to pay time and $$ to see an audiologist. Initiatives to teach mobile app makers about how to help their apps appeal to people with hearing aids. (Hint: subtitle everything) In short, think of Google Glass but for hearing instead of sight -- and think of it was a product you can sell to the normal hearing public as well. Augment regular hearing, as well as assist with hearing loss. Imagine being able to go to a restaurant and silencing everything but the people at your table. How nice would that be? /rant :)