The St. Cloud, Minn., school district is paying $19.95 a month for a new wireless service -- and the right to be the first customer for something that some people say will be huge, reports the St. Cloud Times. The laptop computer sitting on the table in the St. Cloud superintendent's office looks like any other. But its wireless internet access is a bit different. A chip in an LED light above is carrying the signals rather than a radio wave.

The use of light to carry communications is creating a buzz among local leaders who have seen it. Its...

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