Apple Pay

Apple Pay is available in the US, the UK, Canada, Australia, China and Singapore.

Above is from the Apple / Australia website > http://www.apple.com/au/apple-pay/

If that link doesn't work right now, try later. The Apple Support Communities site is having problems with links.

Yes, but only 2 issuers currently support Apple Pay.

American Express (cards issued directly by American Express)

ANZ (American Express credit cards, Visa credit and debit cards)

NOTE: ANZ is the only Bank Issued AMEX card currently supported in Australia.

Apple Pay participating banks and store cards - Apple Support