Several phone applications are available to track and record fitness activity. Click the links below for details and downloads.
CardioTrainer: Features GPS tracking, comparison tools, music and Facebook integration, voice notifications and a little Fitness Bot that lets you play with your friends.
Couch to 5k: A training app that uses the C25K system of interval workouts.
Nike Training Club App: Customized workouts for full body training -- strength, core, cardio and interval workouts.