The two companies announced Tuesday they are jointly developing a wireless system so some Nike shoes embedded with a sensor can communicate with Apple's iPod Nano music player to track a runner's performance and help choreograph songs to the moment. After the workout, the data also could be automatically sent to a personal runner's log at the new nikeplus.com Web site whenever the music player is synchronized to Apple's iTunes program. The $100 Nike+ Air Zoom Moire shoe will be the first footwear designed to talk to the iPod, and more are planned, said Trevor Edwards, Nike's vice president of global brand management.

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