The following are excerps from Kaywa FAQ
QR Codes (= Quick Response Codes) are 2D Barcodes (two dimensional Barcodes) developed by Denso and released in 1994 with the primary aim of being easily interpreted by scanner equipment in manufacturing, logistics and sales applications.
Japan, the first country with a highly developed 3G network and high usage of the mobile internet, was also the country where telecoms like NTTDoCoMo and KDDI achieved a breakthrough by bringing QR code readers to mobile phones. By installing QR code readers on consumer phones, if was suddenly possible for everyone to create and read QR codes and to connect easily to mobile sites. Today QR Codes are so pervasive in Japan that it's almost impossible not to see one. You can find them in advertisements, mobile campaigns, on maps, in magazines, on billboards etc. In that sense the QR Code revolution is comparable to SMS. It's an easy and simple tool, the cost of the connection to a mobile site is below the price of an SMS and it's up to you to decide whether or not you want to scan it.
The QR code is about to become widely used in the United States as well. Google Maps already uses them and offers posters for clients to use. Facebook is starting a location service that relies on QR code. We recommend that all our clients start using QR code on their web sites, front door and in advertising as we are on our contact page.
This is a video demonstration of QR code being used in Elle© magazine advertisement.
We have developed a program which will generate the code for you. It is web based and very easy to use. Just enter your contact information and QR code will be downloaded to your browser.
Click here to get your QR code.
Click this QR code
to get Kawa Reader