AT&T's recent decision require a Mobile Share plan to access FaceTime over cellular caused a significant outcry from net neutrality supporters Public Knowledge and Free Press, which claim that the company's policy violates the FCC's Open Internet rules. Despite appeals from both groups, AT&T's senior vice president of regulatory affairs Bob Quinn has vocally defended the carrier's position, and denies the claim that the policy violates FCC rules. Here's the latest on what may turn out to be an important battle for the future of wireless net neutrality in the United States.