If you don't want to play by Apple's rules then don't use the Apple device.
There is no mechanism to determine what is legal or illegal. The iPhone can't suddenly decide to transfer your band's music and not transfer something bought from the iTunes store.
Also, I think it is hilarious that jailbreaking is oh-so-bad and overclocking is oh-so-good. They both void the warranty. As you say, "I can do whatever with my device"