Originally Posted by UnfathomableBastid

One thing to clarify, the question was posed not because the use of their device "annoys" me, but rather the what-if their device somehow actually DOES interfere with the navigation systems? In that case, it surely is my business as I'm on this plane with them!

Feel free to rip me for that line of thinking, but until the FAA says its safe to use electronic devices during takeoff/landing, it seems like all passengers have a say about the idiot still using their device.