Even if that happened, all the retailers have to do is push their alternative along until it gets traction. Their will be a cost of acquiring customers, but its

Even if that happened, all the retailers have to do is push their alternative along until it gets traction. Their will be a cost of acquiring customers, but its in their long term interest to pay that upfront fee. Then once you have two competing systems, there is nothing preventing the POS system from first prompting for payment with CurrentC and then only falling back to Apple Pay and other CC company backed NFC solutions if that fails.