As I am using the Nike+ sportband and have the chip in my shoe I signed up for a challenge called TakeCPH.
The TakeCPH challenge is where Copenhagen is seperated into different sections and the area you live in is the area you run for. Every km you run you can then take a square on the map of Copenhagen and it will turn the colour of your own area.
The area with the most coloured squares at the end wins!
Have a look at the site. It's actually pretty cool and encourages you to run further.