Not really. It is an example of me reading an Ask The Pilot column, on Salon, in which this topic was discussed, and finding myself in agreement with the reasonable points made therein, by an actual pilot.

As far as authority goes in general, and the FAA in particular, I think the FAA and Homeland Security are utterly full of it, most of the time. This issue is more evidence of that; I agree with those who point out that there is no reason to power off devices. Just pointing out that there is indeed a valid reason to want folks to put them away. Especially anything involving headphones.