Through virtual desktop integration, Cisco Cius offers flexible computing options with cloud-based services, providing dramatically lower capital costs and cost-per-user for desktop maintenance.

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No other OS has come close to this level of integration between web and desktop.

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Almost all of this integration takes place on a desktop where cookies allow users to remain signed in between browser sessions.

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Onetime Web-browser startup Rockmelt, which once trumpeted its integration with Facebook, says its desktop browser had 4.5 million users but will be discontinued in the next few months.

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