I know that this 'old news' but I want share my priceless experience from the yesterday's evening flight Rome-Luxembourg. The first message provided via loudspeakers by the cabin crew: '(...) we would like to ask all the passengers with SGS7 to switch off their phones and not charging them during the flight. In case they are getting warmer please inform the cabin crew immediately (...)'. Luckily SGS7 are splash proof:)