Our bitcoin wallet that based on philippines can shop to amazon and their are upgrading their business now so it will be more smoth than other website, im sure that bitcoin will be implemented to use us payment method. Im waiting for the next update that bitcoin can be use to shop from super market.
There's nothing special about that at all since any bitcoin wallet can be used to buy from Amazon using purse.io. I think one of the ways bitcoins can be used to shop in a super market is when there's a bitcoin card or something similar. Although I don't see it coming in the near future because every super market would have to adopt to that new technology and update their machine so they can accept bitcoin cards.
I Think not only amazon that we can use from philippines.. wallet. they are already added a vcc which is working to any website that accepting vcc or prepay reloadable vcc.. that you can buy in amazon ebay or any shop online that accepting credit card or vcc..