With a trip to IST coming up I will be leaving my laptop at home and travelling with just my mobile phones. I was looking at the BA help pages, although these aren't much use. They direct you to a DoT news page, which was withdrawn on 22 September. The new DoT page advises contacting your airline to check what is permitted!
I assume that passengers are allowed to carry more than one mobile phone (e.g. Personal and Work mobiles), assuming they are within the size restrictions?
I assume that mobile phone / USB chargers are also permitted on board?