I recall years ago sitting in the LAX UA red carpet club listening to a portable cd player (yup, long ago). My music cut out, and thru my cd player, that didn't even have a radio as I recall, I was listening to the pilot pulling into the gate outside the window communicating with the ground crews over his headset.

Now, as I understand it, that lovely FCC stamp on the back of our electronics means the device must accept any interference received since it's a consumer product... but I'd also hate for my pilots to unexpectedly get my co-passenger's latest dubstep mix opposed to the air traffic controller during takeoff.

For the record: I'm the guy that intentionally leaves his phone on, in airplane mode, idling. I think this is good enough.