I have played a little bit with QR Codes. QR (Quick Response) codes are similar to barcodes we know form supermarkets, but can contain much more information.
On Android Market the App “Barcode Scanner” can be downloaded for free. With “Barcode Scanner” one can use the phones built-in camera to resolve QR Codes. It works really fast and stable. Just give it a try.
QR Code generators: