I had first become familiar with these codes in Oct 2006 (link to my posts: what can we do with them?, About QR Codes).
I finally see some movement in the deployment of this technology here in the US. I just read this article explaining why this technology can be very important for the newspaper industry. A few interesting links
- Link to a pic of a QR code in san jose mercury news
- Google AdWords Print Ads
- NY Times article on an unsuccessful test