[interesting stuff about how Zink/GAW plug in works deleted for brevity and to focus on the following claim:]
you do understand this is the same way paypal has been operating since early 2000's?
No its not. Paypal has two modes of operation:
(1) the seller/store wants to accept paypal, so they download a paypal "payment" widget and javascript code, and the seller/store agrees to abide by seller terms & conditions; it is pretty clear this is NOT what GAW is doing or else they would not need Zinc.
(2) you can send a payment to anyone on earth with an email address, BUT the recipient still needs to "accept" the payment manually, give Paypal account information to get the payment to transfer to the recipient's account (or get a paper check which takes a week), and agree to Paypal's terms and conditions. No way is ANY e-commerce business going to do that.
What Zinc did (GAW proposes to do) is interpose a middle-man. The middle-man takes your Bitcoin/Paycoin and converts it into fiat, then the middle-man makes the purchase on his/her own account but putting your address in as the shipping address. The "man in the middle" approach creates lots of problems that Amazon, Walmart, etc. will NEVER want to deal with: returns, customer service, shipping issues, etc. all have to be handled through the "man in the middle". While the customer does not realize there is a "man in the middle" and gets mad at the online retailer... so that is why the TOS of every major e-commerce company prohibits this type of thing. It is not what Paypal does, nor what Paypal ever did.