It's an essential way in which we all use music. I won't speculate, but most people who have smart phones are using them for music, and it's certainly the way we listen to and consume music.
We're in a pennies business more and more these days. We can't discount what appear to be small pieces of revenue because they all add up to what, at the end of the day, should justify our continued investment in music and the continued creation of new content.