Mobile sensors can provide a lot of information about location, movement, and the environment. The document discusses the three main types of mobile sensors: motion sensors like accelerometers and gyroscopes that detect device movement; environmental sensors like thermometers and barometers that measure temperature, pressure, and humidity; and position sensors like magnetometers and orientation sensors that track the physical position of the device. It predicts that more sensors will continue to be added to mobile devices in the future to track additional information about air/water quality, 3D imaging, radar/sonar, emotions, UV light exposure, and more. Sensors have already revolutionized aspects of daily life through mobile devices and their capabilities are just beginning.