I'm not sure what you are getting at here. I've specifically said that "Cydia pretty clearly falls under the copyright limitations regarding software compatibility." Where do you disagree with me?
The part where you're trying to tell us that modifying our OS violated copyright law. That's like saying that writing notes and highlighting sentences in a book violates copyright law because you're modifying the book. You have no point. I'm going to do whatever i want with the phone that i own, and the law backs me up. Sorry buddy, you lose.