A man is pictured Wednesday inside of a Car Volvo V60 P-IH at the Mobile World Congress, the world's largest mobile phone trade show, in Barcelona, Spain. The first wave of the wireless revolution was getting people to talk to each other through cellphones. The second, it seems, will be getting things to talk to each other, with no human intervention: cars that talk to your insurance company's computers, bathroom scales that talk to your phone, and electric meters that talk to your air conditioners. So-called machine-to-machine technology all the buzz at this year's largest wireless trade show, and some analysts believe these types of connection will outgrow the traditional phone business in less than a decade.

Associated Press