This one-way spectrum (down to devices) can be used to off-load a 3G or 4G network and send the streaming video over the one-way network, freeing up more capacity on the two-way network.

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That means 500 million GPS phones walking around in cities and towns, creating a powerful two-way sensor network that Nokia and others can tap for selling targeted advertising, friend-finder services and city guides.

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But the phone companies have a two-way switch network, which is underrated.

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About thirty years ago, Motorola hooked up with Nextel to bring national two-way push-to-talk service to businesses and government through a public infrastructure network.

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Logic, Leibniz said, could be relentlessly boiled down to its skeleton, like a string of simple two-way railroad switches comprising a dizzying and complicated national rail network.

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Union Pacific is in now better positioned to cater to a specific industry in a more dedicated way, leveraging its extended rail network that spans across more than two-third of the nation.

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