1. A smart phone comprising: a touch screen display; a camera for capturing imagery; a microphone for capturing audio; a physical discovery button for receiving a user's indication to initiate a discovery mode, in which the discovery mode includes processing smart phone sensor-captured audio or imagery to discern identification or meaning therefrom; one or more processors; and memory storing software instructions for configuring said one or more processors for: responsive to a user's request via the physical discovery button, initiating a discovery mode including processing imagery captured with said camera; causing two different areas to be displayed on the touch screen display, in which a first of the two areas comprises a sensor pane in which visual information associated with captured imagery is displayed along with augmented reality graphics, and in which a second of the two areas comprises user-selectable graphic icons; and causing a user-selectable graphic icon to be displayed in the first of the two areas to allow a user to switch discovery modes from image to audio.