Until and unless high-speed wired and wireless networks are ubiquitous, none of this can happen.

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At the same time our use of the cloud for access to content could well choke the available bandwidth on wired and wireless networks.

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These assets could be leveraged by private companies to more cheaply build out wired and wireless networks, and by offering them up, Chicago gets an important voice in planning how the super high speed networks blanket the city.

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In Asia, where far more people carry cellphones and watch TV than surf the Net, the investments also acknowledge that Internet content will in the future be accessed over different types of wired and wireless networks and on various devices, not just computers.

CNN: Thinking Smaller

She is right that physics imposes more severe constraints on wireless networks and that mobile never delivers the cutting edge video service that wired can.

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