I downloaded an App from the AppStore called NeoReader. It’s a free app that allows you to scan Data Matrix, QR and Aztec codes. While it doesn’t have the ability to scan product barcodes, you can still enter the code manually and it will pull up product information! If you have a jewelers magnifying glass, you can snap a picture with your iPhone while looking through the magnifying glass. This will allow for better focus on the code in order to be processed correctly. iPhone 3GS users have Auto-Focus, but since I don’t have one, I can’t test it out. BAH!
Here’s the QR code for leesayao.com!