BNZ are using the standard Android Pay, so that didn't require an opening up of the Android NFC ecosystem. I think that is a bit of a red herring.
Only visa debit cards can be used with Android Pay, so not really of that much benefit to me.
Hurry up with the Apple Pay, please!
I've seen ANZ customers using it and it is very tempting to open an ANZ account so I can get Apple Pay.