Superpilot:
What a lousy, totalitarian piece of legislation. None of the airlines I've flown for (Far East, Middle East and Europe) have had such a rule, common sense remains the order of the day. Recently, the average sector length for me has been close to 5 hours (and then 5 hours back all in the same day). I would literally end up banging my head on the windshield or falling asleep. Sectors of less than 2 hours you generally don't have the time to pull out your laptop or do anything extended with your tablet.
It's not the airlines. It's the *#@*!! FAA.