NAB has quietly introduced NFC PayWave stickers for iPhone users in the last few weeks. They'll cost $3.99 each normally, but NAB has a launch promotion to provide them free of charge up to 7th October.
Like the Commbank ones, the sticker is associated with one of your existing bank accounts (you have to have a Visa Debit card for the account as well) and then you can Paywave with the sticker on your iPhone.
You can stick them inside or outside your phone case too (inside the case makes it less obvious that you have the NFC Paywave tag on your phone).
Presumably this is NAB's fallback position to getting in on Apple Pay, giving they didn't get their application to negotiate as a bloc with the other big four banks approved by the ACCC.
(Note: the sticker can obviously be used with any phone handset but NAB is marketing these as a solution for iPhone users because they don't want to participate in Apple Pay, given the transaction fees Apple charges the banks.)
@niner: I'm sure the number of retailers that Apple Pay doesn't work with isn't that much; certainly nothing that would affect more than a minority of people.