I have been on a few airlines that didn’t care if you had your iPad out reading magazines or watching shows, or watching movies or your laptop. But a majority of airlines prefer you not to use your electronics or your mobile phones during take-off and landing due to it “interfering” with the plane, I never knew an iPod can mess with a plane.
This was due to the original rule from the FAA in the US and everyone followed suit, but thankfully after such a long time they have come to their senses and realized that phones can not bring down an Airbus or Boeing because a guy is looking for a phone signal to send off his last email. Lets see how soon airlines adopt this new line of thought.
Link: Wired