http://www.bbc.co.uk/news/uk-11172864
"The Royal Mail has launched the world's first "intelligent" stamp, the first to work with image recognition technology.
"The stamp, part of the Royal Mail's latest Great British Railways edition, will launch online content via an iPhone or Android smartphone.
"Users place the camera over the stamp, which then launches the online content.
"The Royal Mail said intelligent stamps "mark the next step in the evolution of our stamps, bringing them firmly into the 21st Century."
"People can use the stamps via the Junaio application, which contains a Royal Mail channel which activates the phone's camera.
"The application is available in the iTunes store and Android Market free of charge.
"The Royal Mail's Philip Parker said: "This is the first time a national postal service has used this kind of technology on their stamps and we're very excited to be bringing intelligent stamps to the nation's post...."
