Endomondo Sports Tracker

Your trainer for running, cycling, walking etc:
•Real time GPS tracking of time, distance, speed, & calories
•Works with Polar Wearlink® + transmitter with Bluetooth® and Zephyr heart rate monitor
•Audio feedback
•Real time peptalks from friends
•Maps
•History with lap times & music
•Auto pause
•Customizable workout screen
•Headset control: Use the headset media button to get audio feedback and pause/resume a workout (wired headset & Android 2.2+)
•Sign up with facebook.

Endomondo.com for analysis & challenges