I am somewhat mystified as to why more carriers ( Air NZ, are you listening ) dont offer online checkin. I think that the number of no-shows would drop. I mean, if you are already checked-in, the chances are pretty good that you will actually show up for the flight.
KiwiTEAL, were you talking "Online" (website) or "Selfservice" (machine at the airport) check-in. Since i cant imagine Online checkin being available at an airport terminal, i'd say it would be at home/office
Last time I flew QF was in May and they didnt have Online checkin at that point.