I still have a few privacy questions that I can't find answers to:
1. Will merchants that you purchase from know your name?
2. Does it work with online stores that don't support Apple Pay? Will you have to use your real name and billing address?
1. Yes, it's a normal credit card.
2. Yes, you can generate a new virtual card number with a CCV and expiration date in Wallet.
3. Yes, probably. Though most places don't actually verify that info, or they only care about the zip.
A couple of weeks ago I was in New York City, and I needed to buy a MetroCard from a vending machine at the entrance of a subway station. I stick my credit card (issued by a major Australian bank) into the machine. I proceed to pay. Then it asks me for my ZIP code. Living in Australia, I don't have a US ZIP code, but I do have a four digit Australian postal code. I try entering my four digit Australian postal code – it doesn't accept it, wrong number of digits. So then I just try 90210. That works, it processes the transaction and gives me the MetroCard.
The answer to your second question is into the link:
> A titanium, laser‑etched, Apple‑designed credit card. And Mastercard is our global payment network, so you can use it all over the world. For apps and websites, there’s a virtual card number in the Wallet app. It autofills for you when you’re using Safari
