I agree that it probably would not make a big difference, but since there _have_ been reports of interference, the FAA errs on the side of safety, IMO for good

I agree that it probably would not make a big difference, but since there _have_ been reports of interference, the FAA errs on the side of safety, IMO for good reason. My main point was that it's not an either-or thing that so many commenters make it out to be. It's possible to want to mitigate the potential effects of interference even though this interference is not very likely to cause accidents. As aircraft are being more thoroughly tested (for instance with WiFi networks and picocells) more and more devices will be allowed, and maybe one day we'll be able to use electronic devices during takeoffs and landings as well. But, like all things in the aviation world, it will take time.