Answer:
1. According to the case study (copy attached) "the upcoming technology that will be used in retail stores to improve customer service is the Scan As You Go Mobile Devices".
2. It is currently being used by sales officers in some shopping malls to scan items on the spot and let customers pay without going through the cash registers.
It is also being used to help customers take advantage of discounts and coupons on items being purchased. The effect is that customers spend 10% when they shop using this technology.
3. In the future, the customers will be able to check out using their smartphones.
4. According to the case study, the technology referred to in 3 above is already pioneered by Apple Stores.
Cheers!