AT&T (T) VP Bob Quinn responds to accusations his company is violating net neutrality rules by limiting Apple's FaceTime to Wi-Fi and shared data plans. AT&T is innocent, Quinn argues, since neutrality rules only apply to downloaded rather than pre-installed apps. Few sympathize. "It's a dangerous, slippery slope to limit smartphone features ... just because a customer doesn't sign up for the most expensive data plan," says Steve Kovach. That might especially be true when rivals are racing to compete on price.