Here is an example of a discussion going on in that page. In this case someone saying Vodafone is behind because Telecom has a "4G" service since the start of the year (Telecom's 4G service is not launched yet). The evidence? His HTC One X is very fast. So fast that he asked a Telecom store manager how was that possible and he explained that "4G was already available for parts of the country (here in Auckland mostly). But because the HTC One X can only update to 4.1 at most on Telecom atm, it still says its 3G. But if you were to use an S3 or something similar, it would actually say '4G' on the phone itself."

Good $deity...