New Scientist: Microsoft developed Kinect for its Xbox 360 console to “transform the way users play computer games.” Kinect tracks a gamer’s physical movements and transposes them onto their onscreen avatars. But some researchers see more applications: Home-security systems, where the movements of an unfamiliar intruder could be distinguished from those of family members; or a remote monitoring system, which could observe the elderly and, by their posture and activity levels, determine how they are doing.