Softminer.net

BeeTagg is a free QR code reader for mobile, it can read from image or directly from camera:
http://www.beetagg.com/

for generating QR code also you can use following websites:

http://qrcode.kaywa.com/
http://code.google.com/apis/chart/docs/gallery/qr_codes.html

for example following QR code is softminer.net