Apple has been quite vocal about all of the retail "partners" that it has on board for Apple Pay, but it looks like the pushback from retailers is already coming to fragment the NFC payment market.
A number of major retailers have started blocking Apple Pay and Google Wallet payments in favor of another proprietary payment option on the way.
The competing payment platform is CurrentC, which has the backing of Merchant Customer Exchange (MCX), but not one single bank yet.
Despite the fact that CurrentC isn't on the market, has no banks on board, and won't be available until next year sometime, the MCX partners have started blocking Apple Pay, Google Wallet, SoftCard, and other mobile payment systems.
So, it looks like there will essentially be two different types of stores once next year rolls around - those in MCX who support CurrentC, and everyone else.