Sports Tracker is an award-winning app that got its start on Symbian several years ago and has since spread to all major platforms. It has now landed on Windows Phone, including Nokia's own Lumia phones.
The app doesn’t feature all the goodies of the versions for other platforms, but there's all you need to start using it right away. It supports tracking (distance, duration, energy spent, etc.), recording that info in your training diary, which can be synced with the sports-tracker.com service and shared on Facebook and Twitter.
You can grab the app for Windows Phone right now - it's free. The dev team is working on yet more features for Sports Tracker and are reportedly excited to work on the new platform, especially because of Live tiles, which make one-handed operation easier.
If you're looking to swap your old smartphone for a cool new Windows Phone, the Sports Tracker has your back - they've launched a Facebook competition with a Nokia Lumia 800 as the prize. Check out the rules over here (hint: you just track your workout with Sports Tracker and that's it).
They already have! Now you can run using your N9 http://store.ovi.com/content/214863#
I love Sports Tracker, I have done many workouts since my N95, now there's no reason to buy a Lumia phone
i have bought that phone!!!it is superb!!