Nike + iPod is a here to run. But what not make them for walking the talk with music. Then they can do more than listen to good music at Live Earth. Why not build a LiveEarthWalk.org where al green fans can join for a green walk to work etc. instead of driving their car. Then you could compare your steps with famous people like Al Gore, Leonardo DiCaprio, Madonna and get green points that are connected to the sponsors of the Live Earth walk. One point with this project is that it is positive for your health and weight (walk on earth and save it at the same time).