Spinning on Tuesday unveiled iSPINNING for the iPhone, an application offering users a suite of health and fitness functions to keep track of their bike routines. iSPINNING couples with fitness sensors to gather heart rate, speed, cadence, and power data, providing a complete set of statistical data for bikers. iSPINNING is temporarily free from the App Store, while the iTMP SMHEART LINK hardware
