In his opening remarks at Apple’s “Let’s talk iPhone” media event today, Apple CEO Tim Cook revealed that the company has now sold over 300 million iPods. Cook stated that the iPod holds a 78 percent share of the MP3 market, that the company sold 45 million iPods from July 2010 to June 2011, that nearly half of iPod customers are purchasing their first iPod, and that the iPod still represents a “large and important”…