This article represents an idea of replacing plastic loyalty cards by electronic smart phone system which will save all your shopping information. The system will offer you an online map with places of your interaction, When shop you will open this map and see all places where there are some points or savings just for you, So since you have this system the business owners will show you their loyalty but a the same time economize on not producing those plastic cards. The Pay Cloud system will also save you from holding all those cards.
Other idea offered in this article is making a special code to each customer something equal to merchant account. It can be used instead of credit card, so you don't need to take it off your valet. But you will see all your expenditure online and you can get points or savings for attending new places. As well as a merchant account this article provide an idea of using tablets in the restaurant which can add some mobility, security as well as increase spontaneous food and beverage purchases.

http://pointofsale.com/20120224929/Mobile-POS-News/mobile-loyalty-programs-make-it-easy-for-customers-to-keep-coming-back.html i guess it didn't attach properly