One of the advantages of shifting to a paid, commercial model is that it gives you cash to spend on things. In one my first expenditures beyond CalTopo’s regular operating costs, I’ve acquired a copy of nztopomaps.com’s tile set, expanding scanned topo coverage to New Zealand.
As with coverage for Canada, none of the elevation based layers – shaded relief, slope angle shading, etc – work in New Zealand. You’re limited to the government produced topo layer, although the small / interactive profile will still work as it uses Google’s elevation data.
As with Canada, these maps have been seamlessly integrated with the “USGS 7.5′ Topos” layer; there isn’t a separate NZ-specific option. No comment as to when or if CalTopo might expand to other countries, although it certainly helps if there are ready-to-go tilesets, rather than me having to stitch together innumerable PDF scans.