Using QR codes is a rage in Japan.
QR code embeds information in a Matrix barcode and there are simple software and online tools to generate a QR code.
If you have a phone with a camera, you can read a QR code. All you need to do is download a QR code reader.
You can get QR readers from Getjar.
Once you know how to Generate a QR code and read a QR code.
You can go berserk with its uses like the one displayed here!
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| Here is a BBC QR code |
Here is a good article to give you new ideas.
Clever Texting
Here are 101 ideas to use QR codes.
Generate Your Own Business-Card from this link.