1) Thanks to my ongoing preparations for an upcoming conference presentation, I’m seeing QR codes in my sleep. So, it’s no surprise that this article on a potentially life-saving QR code caught my eye. This is the right use for QR codes, as opposed to this.
2) Here’s a fun Google Chrome experiment. Turn your favorite website into a 3D maze (I recommend trying it with the Enspire Studios site) and navigate it by connecting your smartphone to your PC with a (ahem) QR code.