SK telecom has just begun pilot testing of a 'smart cart' program in china's shanghai lotus supermarket with a shopping cart service that integrates with smartphones to provide store and product information tailored to user's needs.
users first download the company's 'smart cart' application to their smartphones, from which they can search for product information, discounts, and store coupons, or create a shopping list. when at the supermarket, the user's phone is synched to a tablet PC installed on the shopping cart. indoor positioning technology determines a user's location to within a single meter, permitting the broadcasting of discounts or information specific to this part of the store, and all the screens are networked via wi-fi, enabling real-time updates to be posted to all carts. upon checkout, the tablet screen shows teh list of purchased items, as well as membership points and any available coupons.