I saw this first on a summer trip to Calgary where Target was already open. In the electronics sections, there was a little device that caught my eye. It was the Square Register. An iphone/ipad/android device that plugs into the headphone jack that accepts credit cards for payments. Today, I finally picked up two at the newly opened Gatineau store. The cost was $23 after tax for the two.
I downloaded the app, added my banking information and configured my account. I have to wait a few days for the confirmation of my bank account, but was able to set up a test transaction as well as obtain my $10 bonus for opening the account. It was relatively simple to set up.