Originally Posted by
plagwate
Not really. Phones off is an FAA regulation. Just because it is being enforced by DL staff doesn't make it DL-specific. If so, I should start a discussion about Pop-Tarts since I happened to bring one onboard a DL flight once.

The thread opened with a question about Delta's method of enforcement. Specifically, the OP wondered if Delta's poorly worded admonition against airplane mode was counterproductive.
Lost amid the arguing over the prudence/necessity of the FAA rule is the reasonable suggestion that Delta should reword its pre-departure announcement as follows: "All electronic devices must be powered off completely for takeoff and landing. Airplane mode is approved only while the aircraft is above 10,000 feet. If you intend to use your mobile phone once we're above 10,000 feet, switch the phone to airplane mode
before powering it off."