Mobile phones are a form of ubiqutous computing.
The connected crowd (Rheingold).
Sensors on phones include:
sound
vision
location (GPS, cell-id, wifi)
movement (accelerometers)
ad hoc bluetooth devices
Now projects using mobiles to collect environmental data are becoming common place:
Cellphones to monitor highway traffic
Cellphones to detect dirty bombs?
Cellphones to track air pollution
Capturing ambient intelligence
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