Is this a reference to something specific?

Supposedly, Amazon employees watch the cameras in their stores, to know which Prime account to charge for which item. It sounds like a step between self-check and scan-bag-go, with a "mechanical Turk" to bridge the gap - turn Loss Prevention into legitimate checkout and a profit center.

lol so THAT is why they are so coy about how the system actually works. My neice asked one of the employees and he was constantly giving dodgy answers to everyone. I figured they just didn't want any employee letting any proprietary knowledge out..

yes, amazonGO. a shop where you enter, systems detect you via your phone or wireless card, you pick up what you want and leave. items show up on your credit card.