A $2.25 million global competition to stimulate the development of a new generation of health sensors and sensing technologies that can drastically improve the quality, accuracy and ease of monitoring a person's health.The announcement was made by X PRIZE Foundation Chairman and CEO Dr. Peter H. Diamandis and Nokia Executive Vice President and Chief Technology Officer Dr. Henry Tirri during their keynote address at the Wireless Health Convergence Summit in San Diego, Calif.