In this Tuesday, Feb. 26, 2013, photo, a man stands up in front of a banner of Connected city at the Mobile World Congress, the world’s largest mobile phone trade show, in Barcelona, Spain. So-called machine-to-machine technology is 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. (AP Photo/Manu Fernandez)

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In this Tuesday, Feb. 26, 2013, photo, a man checks his device in front of a banner “Internet of Everything” 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. (AP Photo/Manu Fernandez)

In this Feb. 26, 2013, photo man is pictured inside of a Car Volvo V60 P-IH at the Mobile World Congress, the world’s largest mobile phone trade show, in Barcelona, Spain. (AP Photo/Manu Fernandez)

In this Tuesday, Feb. 26, 2013, photo, a woman sits on an eCooltra Connected electric scooters at the Mobile World Congress, the world’s largest mobile phone trade show, in Barcelona, Spain. (AP Photo/Manu Fernandez)