There seems to be a slight misunderstanding here, or you haven't read the news item. The BA rules simply allow you to switch your mobile devices on as soon as the plane touches down, which gives you (oh, joy!) an extra 5 to 10 minutes to play with your precious mobile devices. The rules governing switching off before take off have not been changed.
FlightPathOBN commented in his post on cell phones, so he is from the US; in the UK it is called a mobile phone. So quoting UK regulations to him is somewhat meaningless.