Nowadays, the phone cameras from mobiles are not so out of the ordinary. The latest Sony Ericsson development could allow an user to command a phone by gestures in front of the camera and the phone will take actions. Phone users can take a call from the other side of the room by simply moving their wrists or fingers. In addition, you can change tracks with simple movements of your hand. The happy users of this phone still have to be in front of the camera.