Pay your coffee with your mobile

Tagattitude has developed the TAG&PAY terminal for Mobile payments in Point of Sales. It's just as quick as you can see in the video.
How it works :
The vendor enters the amount to be paid on the keyboard of the Tag&Pay terminal and gives the POS to the buyer. This last just call the payment number, enters his secret code and puts his mobile phone on the POS. A few seconds later, that's done !