Walking through a museum, seeing something you were interested in, and having more information about it read to you be someone knowledgeable almost instantly is a great User Experience.
http://www.mercurynews.com/business/ci_27234868/museum-2-0-g...
The de Young Museum's partnership with Google, and the exhibit-tour app created specifically for Glass, is one of the most thrilling experiments yet. Billed by French app-maker GuidiGO as the first-ever tour of a complete exhibition on Glass, the augmented-reality effects unfolding within my wearable device made me feel less like a detached spectator and more like a privileged guest at an intimate salon. With one eye on the actual painting before me, I could tap and slide my finger along the Glass stem and call up text or images or an audio interpretation of the piece by Haring's sister, Kristen, who teaches history of science and technology at Stanford University.