As far as I know, US airlines are mostly uniform about the pre-takeoff announcements on the use of electronic equipment. Although I've flown alot on non-us carriers, I can't remember exactly what the briefing says is allowed and is not allowed. I think we can all agree that as a condition of passage, passengers must follow the safety rules established by legal CAA authorities and the airline itself. If GPS' are authorized, then by all means, have at it -- although I personally don't see the thrill there -- I'd rather check the inside of my eyelids for light leaks. BUT, as a matter of consideration for others in the airplane, my own safety, and the safety of the aircraft itself, I WILL follow the legal orders of the PIC and crewmembers - just as I follow the flight regs and rules of the country I'm flying in. In the last few years there seems to be a significant increase in the disregard of rules by passengers who feel they are above them. It's an ugly thing, and one day, somewhere, somehow it may cost a lot of lives