The Big Poster is watching you

An old form of advertising (outdoor) is starting to take advantage of an new communication medium (the mobile phone). Love is in the air between street posters and cellular phones, giving a new meaning to the word interactivity.
Netimperative talks about Hypertag and its recent marketing campaigns in London. The company that installs interactive devices on posters which allow passers-by to download information onto their handsets, is currently running a campaign for Transport for London.