johnr: Where did you get Samsung S2 from and anyone with you using a Samsung S3 or S4 or iPhone4 and above?

Got it from Mobile Garage who do refurbished phones.
Had it for a few months now, so the difference between last trip and this one is noticable.  But I've had 3G coverage issues up in Taupo every trip since I've used 3G.  Unsurprising given the coverage map.
Coverage is fine in town though, so I'll often be trailing behind in the shops checking stuff and updating while I have 3G.  :-p

My wife has an S3 but is on Telecom so can't really compare, although it's very noticable that she has near full 3G coverage up there, and in most places I don't.