PenultimateHop:steveonz: As reading another post it seems that most people when they arrive in NZ automatically roam on the NZ comms network. This could be an excellent strategy to make extra cash.
At a guess, the reason why people seem to get NZ Comms on arrival is that their signal strength on the taxiways and apron at Auckland airport seems to be particularly good, vs. Vodafone which is marginal/non-existent.
Sorry come again?