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World without Wi-Fi draws near with rise of unlimited plans

New competitive technologies also threaten the network, although many home devices still use it to connect to Web

In an all-data-you-can-eat world, consumers' use of Wi-Fi at public places like stadiums and airports is set to drop to a third of all mobile data traffic from about half.


THE Wi-Fi icon - a dot with radio waves radiating outward - glows on nearly every Internet-connected device, from the iPhone to thermostats to TVs. But it's starting to fade from the limelight.

With every major US wireless carrier now offering unlimited data plans,...

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