Many think AT&T's (NYSE:T) decision to limit the use of Apple's FaceTime app to shared data plans violates the FCC's net neutrality rules. Ma Bell defends itself by arguing FaceTime is still available to all customers over Wi-Fi. Any financial penalties levied by the FCC, should it take up the issue, will likely be small - the bigger problem is the potential for the controversy to produce another PR black eye for a carrier that has repeatedly landed at the bottom of Consumer Reports' customer satisfaction survey.