Originally Posted by jfe
Does it affect anything if they don't?
Nope. I just think it's funny that airlines take so much pain to make sure people aren't using cellphones yet there are all these laptops broadcasting RF. I don't think I've ever heard an announcement telling people to make sure Bluetooth/802.11/internal cellular data cards are disabled.
Solution is to have more laptops with a button that disables all wireless services. Perhaps even mark it with an airplane icon! @:-)