The present technology concerns cell phones and other portable devices. One claim recites a method employing a portable device including a processor, microphone and an interface to receive user inputs, the portable device also including a display screen. The method comprises: receiving a first user request, through the interface, for processing audio content captured with the microphone; processing the audio to yield fingerprint data; communicating the fingerprint data and portable device location information to a remote computer system; in response to said communicating, receiving information including a title associated with the audio content; presenting the title on the display screen; in response to a second user request, through the interface, displaying information associated with audio content captured by other portable devices in an area associated with the portable device location information. Of course, other claims and combinations are provided too.