Makes a lot of sense. All that space, why not make them interactive,
From NewMediaAge.com Kinetic puts mobile focus onto outdoor ads
WPP outdoor ad company Kinetic Worldwide has embarked on an education drive to persuade clients to begin including mobile shortcodes as standard on outdoor advertising.
The company's digital agency, OneZeroOne, is leading the drive to convince clients that mobile shortcodes are a far more powerful method of communication than URLs.
"We're starting with areas where people spend a lot of time, such as train stations," said OneZeroOne's head Chris O'Connell. "Here the chance of getting out an Internet-enabled device is small, which is why shortcodes are very effective, as they let people text in for more information or to receive a WAP Push message."
Heres a list of the SMS companies