Augmented Reality: We See What You See

The idea behind augmented reality is you point a camera-enabled device at something and instantly get information about it. For example, you could point a device at a still photo from an event. The device could identify the scene and start playing a video clip about the event. Google, meanwhile, developed Google glass through which you could, for example, look down a city street and see digital details overlaid on the screen such as street names, areas of interest, and directions.

Augmented reality will prove good for many applications based on entertainment, education, and business. But with it you're pretty much letting a third party "see" in real time where you are, what you're doing, who you're with, and so on.