It’s only been 10 years since the iPod launched, and since it’s become the number one selling music device in the world, according to comments made by Tim Cook at Apple’s “Let’s Talk iPhone” event in Cupertino this morning. He mentioned that market share in the U.S. has been over 70 percent “for a very long time” (at 78 percent now), during the course of which 300 million iPods were sold around the world.