Think more along the lines of Al Gore's pornography superhighway.
The iPorn makes it impossible for parents to monitor their childrens' video viewing habits, which is why I would never buy one for my kids. Now kids will be able to get their drugs and their porn at school. One stop shopping.
But I know the folks over at Apple, ones working in the iTunes Music Store in particular, and I don't know an Al Goldstien, Larry Flynt, or even Hugh Hefner type among them. There was a portable-video company - Archos, I think - that used porn star in their ads. That was sleazy. But Apple isn't Archos.
And with the iPod (as well as other players) you have a central point of where it gets filled up - the iTunes and iPhoto folders on the kid's computer. If you keep tabs on that - and you can even do that unobtrusively over the network - you'll know just what i son the iPod.