I have just completed a 10 week motorhome trip around the area north of Auckland - up to the top. I tried to connect my HP 311 most days and when I did connect I posted speed test results on a thread in the NZMotorhome forum.
Yes the computer is a netbook with wireless LAN and WAN built in (the SIM card slots in the guts of the battery recess). It does have 3G extended coverage. It was bought in NZ in January and I believe is exclusive to Harvey Norman.
Not sure what you mean by "Good to know.....what you were seeing"