I have heard recently about an attachment/ dongle for a smart phone that will allow me to take payments for goods by card when I am out on markets and foires. As these are being talked of in the USA and the Uk I was wondering of anyone has had any experience of them here in France. I have found Sumup but would like more info apparently paypal have one but it doesn't yet take French cards, how typical is that? Any one know more than me?