[fitandfunction]

This is a dream for retailers. "Augmenting" the in-store shopping experience has been a non-starter. Want to get product reviews and more info about this item? Well, why don't you pull out your phone, turn on the barcode app and scan the barcode. Now, you could ostensibly look at a item and get relevant additional information on-screen.

[vellum]

Depends on the retailer. This will just accelerate the process of turning brick & mortar stores into Amazon showrooms.