The startup Ball-it markets a golfball-sized device that is able to interact with your computer, TV or mobile phone thanks to physical wireless sensing technology that was popularized in large part by the Nintendo Wii gaming console. Since it detects things like rotation, direction movements, squeezing, tapping and reaction speed, there are loads of gestures that you can make wielding the ball trigger an on-screen activity
You can place the ball in your pants pockets, after which the device will be able to detect your running speed, how high you jump, and more to control elements of basic sports games. Besides doubling as a pedometer, it also measures how many calories you burn so you can use to improve your fitness, too. Ball-it aims to be able to distribute the device in the near future for 15 or 16 euros (approx. $22) and includes a couple of basic PC games in the same box.
Article Link (TechCrunch)