From NY Times Wireless cash register
When Michelle Dubé, a golf instructor in Rancho Santa Margarita, Calif., finishes a lesson, she whips out her BlackBerry wireless device - to schedule the next appointment, sure, but also to swipe the student's credit card for payment right there on the driving range.
Often using nothing more than an ordinary cellphone and a card swipe attachment, or a handheld device with a built-in swipe slot
Some retailers are already experimenting with hand-helds as a way to do what they call line-busting: making sure that people waiting in long lines for a cashier do not give up and abandon their merchandise.
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