According to this survey, New Zealand has the highest Internet usage per capita of the 32 countries surveyed. We're a wired country, you can even see my motorway onramp.
Also the street I work on has Wi-Fi all up and down it. Yes, you can walk from one end of Lambton Quay to the other and read your emial all the way. I wouldn't recommend it though, reading email at inappropriate times is rude!.