A week in tech; part 1

The latest tech news from Japan and Korea.

A week in Japan tech

Telecommunications

- ATT could owe NTT DoCoMo $3.6 billion if ATT Wireless Services fails to offer 3G wireless service in four US cities by the end of next year as planned. The debt would occur only if ATT Wireless wasn't able to pay the $3.6 billion itself, ATT said in its annual report to the US Securities and Exchange Commission.

- Japan Telecom fiber-optic network control technology promises to create a new trend in large-volume telecom service. The new technology makes it possible to rent by the hour the right to use bandwidth for telecommunications. The service is...

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