Originally Posted by
CX HK
I suppose if the crew tells you to stop using it, it's a good idea to stop using it. But even the "fact" that mobile phones or laptops interfere with flight instruments has been questioned.
http://www.bloomberg.com/news/2011-1...ices-view.html
I suppose if airlines keeping to the rule will cost the airline something tangible, like the carbon tax, or installing lead proofing in the cabin, they won't be so concerned for our safety.
Since the only cost is some somewhat annoyed passengers, they put up with it.