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Nike+ is a feature for the iPod nano which allows to measure time, distance and speed of runnings with a small sensor in running shoes that sends data to a transmitter on the iPod. Those data are sent to a users Nike+ account by iTunes whenever the iPod is synchronized. On the Nike+ website there is a report of runnings, the average speed, total kilometers run etc. The users can also compete with each other in virtual competitions and define goals to run more often, faster or a longer distance. The Nike+ website displays the data graphically with Adobe Flash. There is no official API that allows you to use the raw data. Nevertheless the data are sent to the Flash via XML so there is a chance to use them.