If somebody has some so much free time and has affinity to make a new plugin, I think a QR Code generator plugin could make the QC better, because the number of the smart phones are increased nowadays.
It could contain the product name, the link of the product, the price of the product, the photo link, and maybe the short description.
I think on the product's page, for example under the basket button.
It could be good, because smart phone users can save the datas on their phone, they can send them in email or sms to a friend or later they can see them on another computer.
It is only putting, but I think it could be useful.