9. The device of claim 8 , further comprising a touch-sensitive surface configured for receiving a tactile input, wherein: detecting the trigger event comprising receiving a tactile input at the touch-sensitive surface of the portable electronic device.
9. The device of claim 8 , further comprising a touch-sensitive surface configured for receiving a tactile input, wherein: detecting the trigger event comprising receiving a tactile input at the touch-sensitive surface of the portable electronic device. 10. The device of claim 9 , wherein the motion sensor is configured to detect shaking or swaying of the portable electronic device; and the sensor data corresponds to the detected shaking or swaying of the portable electronic device.