AT&T launched its Digital Life home security and monitoring service in 15 cities -- some large, some midsize -- with plans to expand to 50 locations by midyear, the telecom says. In competing with companies such as ADT, AT&T will allow people to use either mobile devices or PCs to keep an eye on various activities and appliances through Web-connected cameras and sensors hooked up to a broadband connection.

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GigaOm, CNET

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