No, the tap reader for GW plugs into a point of sale machine, like you'd have at a grocery store or gas station - something that goes with a cash register. So, not helpful to (most) any of us. I wanted to post the link because *ahem* someone would have pointed out that it exists if I said there was no POS available. I don;t know if y'all have seen them - they are popping up all over the bay area. You know, home of Google
There are several free or low-cost POS services out there, Square jjust happens to be taking the world by storm because the reader is free, the transaction fees are pretty low and they don't require you to have a merchant account.
I think the biggest point that we need to understand is there are 2 different ways to process credit cards - the first, banks like Wells Fargo. My understanding is they that do POS processing and require you to have and maintain a full merchant account with them to be able to process payments. You rent a POS machine from a leasing company and pay a service to open the secure portal between your store and your bank, but your bank does the actual card processing and the sale is deposited straight into your FDIC insured bank account - no 3rd party. This is the best option for business because if a customer complains and wants their money back, unless they claim fraud there is no refund that the bank forces. But this is very expensive and unless you are a large company, not worth the cost to do business. Not to mention how hard it is to fit a cash register in your purse
The 2nd option, what most of us use, are 3rd party private companies that offer low-cost credit card card processing. Paypal, Google and Square (to name a few). They not only do the POS, they do the processing as well. Then deposit the money into your bank account. They make up their own rules about how to deal with customers and merchants because they can. I love Google today, but at any time they can change their terms of service and be more like Paypal. That would be a tragedy! I do hope they jump into the dongle game, that would make life SUPER handy for me!