I'd count it as a huge "plus" for any airline to announce that mobiles are off limits after the door is shut. I work in IT and have for a long time felt that the wireless/mobile in-flight arguments are fairly spurious, especially when you consider that some refits/new planes will have wireless networks on board to placate the executive travellers.
However, where can we go to get away from the constant intrusion of these infernal devices? They have their uses certainly, but can we not cope for just a few hours? The cc have enough to do without this pain. Get a life – get a good book!