I see there's an interesting W850 decision investor presso on the telecom investor microsite - there's a huge capex increase to bring forward full nationwide 3G deployment and talks about an 'extensive fibre programme" presumably to support this build.
You can download the presso at
http://www.telecom.co.nz/binarys/telecoms_w850_mobile_network.pdf
They also reckon that "Moving to WCDMA at 850 MHz now will…"
- Deliver on our promise to our Customers
- Revitalise Telecom’s brand
- Provide NZ’s largest and fastest mobile network
- Create competitive advantage
- Demonstrate our commitment to being "No.1 in broadband, mobile and ICT"
- Provide significant momentum to the turnaround to Telecom’s business
Time will tell... ;-P