This may be of some interest.
I've looked over the RSM data I have for the last six months, and count 45 new cell sites that 2degrees have/will be putting up.
Perhaps of the most interest will be 7 sites along Whangaparaoa Peninsula, and another 7 sites between there and Albany.
I have a full list of these 45 sites here plus new KML files.
Great to see 2degrees still investing in their network. Looking forward to 4G now!