CardioTrainer
CardioTrainer is a free application for Android smart phones that lets you track and record all of your fitness activity. Uses GPS, Pedometer, & Polar bluetooth heart rate monitor. Integrates many apps to help track diet, weight loss, friend competition & activity. Optionally integrates with twitter and facebook. Can store workouts online for backup and recovery. Integrates with Google Health and can post exercise into to your Google Health page.