There is a European brand hammock in Modern Baby in Wellington Street, not sure it has all of the features that the Amby has (organic etc.). You need to order from overseas if you want the Amby, or you can get some NZ brands shipped also.
Sorry, this is probably too late. But I have a baby hammock and ordered it from Amby headquarters in Australia. It took about a week to arrive. I started using it with my newborn when we came back from the hospital last week. No complaints from him It gets a bit lopsided though from his own leaning, but bc he`s so small I just put rolled up blankets on either side of him to centre it. I don`t see it swinging too much on its own yet but I think that`s bc my baby is too small now.
I checked out the one on Wellington St. Looks like a modern Euro version and also works out more expensive that ordering the Amby from Aus.