Let the iPhone listen to your Tennis Racquet
racquetTune is a new iPhone app that checks whether a tennis racquet is correctly strung by analyzing the sound of the strings. A couple of taps on the strings, and racquetTune analyzes the sound of the racquet and displays the tension with high accuracy. It has been scientifically tested and proved to be very accurate. Additional functions like a swingweight calculator for customizing racquets, makes racquetTune a serious tool that even the professionals praise.
http://prmac.com/release-id-16873.htm
