If Microsoft started pushing IE (if they started making mac versions of IE again) via office updater, I'm sure they would be getting anti-trust cases again. Wonder if any of this will get Apple in trouble.
So, since Apple updater installs with iTunes, and you need iTunes to sync an iPod, and Apple has sold 60+ million iPods, I would say it's just the same as what Microsoft did years ago with IE, using their mp3 player monopoly to get into the web browser business, just like Microsoft did years ago.