A few weekends ago I walked into an Apple store and browsed around. Looking at the accessories, I noticed that there weren't (or I didn't see) any for the mini ipod. In fact, most were related to the nano. I thought to myself how fast my ipod became out of date. I then noticed from the recent ads for the new nano that they are now a different shape! Which means there is a whole new market for accessories. I started to wonder how much money this iempire was making. Thinking about the number of people that have some sort of ipod, imagining that they have a shelf life of 2 years before upgrading, and estimating that each costs a couple hundred dollars... it's hard to fathom.