
The way it works is that you download the Starbucks Card Mobile on to your smartphone and then you can use it to charge drinks and other purchases through your device to your credit card. This make purchases a lot more faster than having to dig on your purse or wallet for cash or waiting for your card to be approve and sign the receipt, this takes away that payment hassle. Also, this is convenient for Starbucks retailers because it would mean that they can serve more customers is a shorter period of time. In my opinion, I think this is a great idea in other to get lines moving faster and service being more optimum.
Make It Active.
http://reviews.cnet.com/8301-19512_7-20029001-233.html
http://www.walletpop.com/2011/01/19/starbucks-rolls-out-nationwide-pay-by-phone-service/