Wifi at North Island airports
Auckland Airport wifi: $10 an hour, payable by Mastercard or Visa (which kind of sucks for a guy who uses American Express exclusively). But the food is pretty good, with a Japanese place having opened up there.
Wellington Airport wifi, according to David Philpott: free. Wellington: keep it that way. I chose to wait till I got home yesterday before sending my emails than give $10 to an airport which was already making money from me via my air fare and my buying food there.