I've never heard robot used anywhere else, but I've never been to NZ.  Most of the SAfricanisms I know of are pretty limited to SA and maybe Namibia -- like a bakkie would just be a pickup truck in Zim.  

My favorite was always the way they use the word now, in that it doesn't actually mean now.  If I say, I'll do it now, it means I'll do it later.  Just now is still later, but a little sooner than now.  And now now means the soonest of all, but still probably not right now as we'd understand it.