The nerd in me was very interested to read about QR codes on Martin Tod’s blog.
A bit of tinkering around, and I’ve found a program my Nokia e65 can use to read the 2-dimensional barcodes, and a website where I can generate the barcodes, and I’m away.
Happily, the barcode reader can also read the Data Matrix format, so I’m not tying myself to one format in a Betamax moment. Irritatingly, QuickMark makes a noise whenever it has successfully decoded something. It’s a good job you can turn that off.
Niles's Blog 
Try the Neoreader.
It reads, QR, DM, Aztec, along with 1D codes such as EAN and UPC.
The option to read 7-10 codes by end of 2007 was not announced yet.
Still waiting on confirmation.
http://tinyurl.com/5lkf9m
[…] Martin Tod got excited about QR codes a couple of years ago, I got excited too. It looks like an interesting technology that has got to have some fun application that I can do […]