OK, this obviously looks like a web browser (native...) using json instead of (xml-like) html, though it's not good as a markup language. Interesting is having

OK, this obviously looks like a web browser (native...) using json instead of (xml-like) html, though it's not good as a markup language. Interesting is having declarative templates on the client side, instead of server-side, for accessing json APIs. Of course you can do this in browsers (and it is done), but this is cleaner and simpler, being a fresh reinvention.