Guys, look, this is what test pilots are for. They get paid the big bucks, because they occasionally fall out of the sky. The electronic emissions on a 767 are

Guys, look, this is what test pilots are for. They get paid the big bucks, because they occasionally fall out of the sky. The electronic emissions on a 767 are already more complex than any simulation could ever predict. If they were going to fall out of the sky because of emissions, it would have happened already, without a single phone on board. Now, that's with hundreds of channels running right next to each other in cable bundles. You're talking about tiny emissions from tiny devices, a couple layers of shielding away. There's no way they can anticipate every combination of everything else involved, but I'm pretty sure those cable bundles pose a far greater problem on every flight, every day, than your cell phone ever will. And I'm pretty certain vast numbers of passengers have left their cell phones on during take off and landing, and there's no, zero, zip incidents of a plane falling out of the sky because of it.