Agree with David --- we do not even know what MSFT's eventual implementation is going to be, and I can not say I know what AVG's is today. Is there a screen he is pre-checked? Is there some sort of ephemeral notice saying "by the way, DNT is on." Will those UIs change over time? Who is going to monitor the UIs and make the decision: "No, this is not user choicey enough!" How