I can't help thinking that this story is a fantastic example of the free market at work. Two college kids use their insight to spot a market need that the "big guys" missed, and create a wonderful, useful product that becomes a smash hit.

Of course, when I say "the free market", I'm talking about the one where good ideas can be shared and copied freely --- not the one populated by sheet music landlords, whose laws were flouted every step of the way for great public benefit.