Hi, I tried Apple Pay in Whole Foods yesterday, it worked but the cashier said that I still had to pick up their stylus pen and sign. I said that the touch ID fingerprint IS the signing but she looked confused and just said it's the same as any credit card and I had to physically sign. I read a report yesterday that another vendor is requiring that you push a button to choose debit or credit cards . . . It seems that Apple have offered them a very simple and secure service but the merchants are not implementing that and confusing the process?