I'm really hoping that the payments don't require NFC or the iPhone 6, but I have a feeling they will. If these Apple-issued POS machines use iBeacons and the A8 uses the same secure enclave the A7 has, it's a possibility. But I'm not getting my hopes up.
I'd really love to know how this is going to work on the iWatch. OK, it'll have the same hardware -- NFC, Bluetooth, likely LTE, etc. But what about Touch ID? I'm guessing this means it'll be built into the display, which is f#%@ing amazing. The good thing is there's nothing wrong with my 5S and I can wait a little while before getting either a 6 or an iWatch. No stores that I shop at frequently have been listed as supporting iPayments, so it's not like I'll lose much to begin with.