Re: New Zealand users: Call for help
We do international Skype video calls over 3G from Australia to Mauritius. There is certainly some latency, but it is usable. If 3G in metropolitan New Zealand is the same quality as in metropolitan Australia you wont have any problems.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.