QR Code is like a bar code, but more large and powerfull. I know QR Code when I visit kaskus.us and find an article about QR Code. I read it, and I've interested in this technology. So, I start browsing about QR Code and I've got an idea to make a small application to encode and then decode QR Code.
My idea is a small web based application to generate a QR Code image based on the user input. And the reader is on the mobile application that can run on handheld devices or mobile phone. And this is a QR Code image that contains my identity.