Follow up on iPod

As a follow up to my last blog post. Yes, I realize that Apple has also tracked the downward trajectory of the Walkman and realize that at some point the iPod will no longer be hip. That's one of many reasons they moved into phones and why they are integrating iPod features with their iPhone features. There is always the next hip thing. Companies that want to maintain their successful lead, need to be willing to cannibalized a current product along with it's revenue stream, so that they can maintain their competitive lead.