I dunno, this site seems to succeed at exactly what it's trying to do: Get idiot kids to get their parents to buy an iPod. It's simple, a bit garish, mildly in-your-face, rather cheesy, and that's exactly what it should be to sell to the audience that it's probably targeted at.
I don't think it's quite targeted at "teenagers", most of which in the high-school to early college years are going to demand something either sexier or more blatantlly rebellious. It's probably aiming for more of the late adolescent through early teen groups--maybe 9-14, give or take. It might work on high-schoolers, but I doubt that's where it's aimed.
And kids in that range have bad taste and are easy to wow with exactly the sort of site this is--loud music, hopping, animated things, and sympathizing with you when you go to talk your parents into something you can't afford. It won't work on everybody, but it's not going to hurt at all, and I'm glad to see Apple taking a shot at things like this more than they have in the past.
Go for it, Apple. It's marketing, and it's good marketing. Heck, I didn't even find it all that annoying (good slogans on the cards), which is what they were aiming for--grab the kids without annoying the parents too much.