Obviously if you are using the Wii Fit to work out, you like tech stuff and innovative workout aids.
Nike has just released the Nike+ Iphone app that lets you track your runs/walks with ease. Just turn on the app when you start your run and stop it after, and the application will show you the route you took, the distance, steps, pace and loads more information to help you see your progress and reach your goals.
If you aren’t using the app yet you need to start. It has taken me from a walker to a runner in a few short weeks.
