While I agree with the request to turn off mobile phones when the doors are closed, I think this is just a little overzealous regulation:
"Some new cellphones available on the market include a feature known as 'inflight mode' which is claimed to allow use of the phone without the phone transmitting. It is regretted that this feature has to date not been approved by aviation regulators and therefore the requirement for cellphones to be switched off when the entry door is closed still applies to cellphones with the 'inflight mode' feature."
When phones are in flight mode (or whatever Air New Zealand call) they have their radio turned off. This is a very important distinction, because converged devices, like Windows Mobile Pocket PC Phone Edition and Smartphone, Palm Treo and Symbian devices all have "intelligent" features, like media player, games, word and spreadsheet programs that can be used during the flight to either work or leisure.
At least the new Business class and Premium Coach class seats have power outlets to recharge laptops and media players... But wouldn't be better to have it in every seat?