The long-lived and usually reliable mouse could soon be put out to pasture, as Microsoft unveiled this week a new hand-gesture sensor that could allow users to point with their fingers rather than a cursor. The new Digits prototype is part of an effort to create a mobile device that could transform interaction with a computer interface. This wrist-worn sensor would allow the wearer to control a range of equipment via hand gestures, which could allow it to be an interface beyond the computer screen.