There seems to be interest in QR codes as part of Graph Expo, as there was at IPEX.

This could be of general interest. What use to make of them? The print industry will be capable of presentation, but why?

The Twitter tag is #QRChicago -

RT @johnfoleyjr: Bestbuy Chicago#QRcodes galore!#QRChicago -http://ow.ly/i/4dez @bestbuy #qr #qrcode
— uSCANme (@uSCANme) September 30, 2010