The Nike+ running sensor is quite cool. It’s basically 2 small pieces. One that plugs into your iPod (only works with iPods), and one that goes in or on your shoe. It’s an accelerometer, so it’s much more accurate than a simple pedometer. It tracks time, pace, and distance, and can give you updates through the headphones. You upload your run through iTunes to the Nike+ website where it tracks all your runs.
Here are a few good links to how it works, and methods for attaching the sensor to your shoe, if you don’t have one of the special Nike+ shoes.
General FAQs
Attaching to your shoe
Here are Kelly’s last 5 runs, and Toby’s last 5 runs: