I KNEW it

[prorogue]

You know how the airlines tell you that cell phones must be turned off

Comments

[zandaralee]

The only thing is that there are often issues in communicating with the satellites (presumably due to the speed or altitude). I've had my phone turn itself on during a flight before, and there's signal at all.

Perhaps in the past, it may have been a security issue, but you are correct, there's no risk of interference now.