Nike CEO Mark Parker and Apple CEO Steve Jobs unveiled Nike+iPod at an event in New York attended by Lance Armstrong and British marathon runner Paula Radcliffe.
Parker said: "Nike+iPod is a partnership between two iconic, global brands with a shared passion for creating meaningful consumer product experiences through design and innovation. We see many more such Nike+ innovations in the future."
Steve Jobs said: "We're working with Nike to take music and sport to a new level. The result is like having a personal coach or training partner motivating you every step of your workout."