Motion Sensor in Android:

       These sensors measure acceleration forces and rotational forces along three axes(X,Y,Z). Motion sensors are useful for monitoring device movement, such as tilt, shake, rotation, or swing. The movement is usually a reflection of direct user input.  In common it is called Gravity Sensor. Motion sensor used for playing games without any Joystick e.g.( Playing Car games on smartphones while moving change hands in up and down for right and left turn).

        In future developers are going to use these sensors for multi purposes in the field of Robotics or Artificial Intelligence. In Artificial Intelligence(AI) scientist are trying to build a human robot  which will act like human by sensing the motion of human by the means of Motion Sensor. In addition to Project Natal, Sony last week unveiled its own as yet to be given a catchy name motion-control device. While Project Natal uses a special camera, depth sensor and microphone to read players movements and recognize their voices, Sony showed off a controller that looked like a bubble-topped magic wand — a magic wand that works with the PlayStation Eye camera to let gamers interact with the virtual world before them in a highly precise manner. Pick up a sword and swing it around. Aim your bow and fire arrows at oncoming enemies. 

Conclusion:

·        More sensors in smartphones - is better

·        There are no significant technical or technological problems for this

·        Quasi-digital sensors are more attractive

·        4444 International Frequency Sensor Association

·        Quasi-digital sensors are more attractive

·        for application in smartphones due to easy system integration and advantages