1. A system comprising: at least one sensor to produce sensor data; monitor logic physically coupled with the sensor, the monitor logic to: detect a sensor event related to movement of a physical object based at least in part on the sensor data; and generate a multimedia message in response to detection of the sensor event, wherein the multimedia message comprises text and a captured digital image that is captured in response to the sensor event; and a communication module physically coupled with the monitor logic, the communication module with a cellular network interface to wirelessly communicate with a messaging system to cause transmission of the multimedia message through a cellular network.