Google's search engine runs on 100, 000 cheap servers and a form of free Linux software.

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As Torvalds rolled out new versions of Linux, it stood for more than free software.

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Rubin's team is building custom mobile-phone software atop the free Linux operating system that will bind the phone tightly to Google's online applications and advertising services, sources say.

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Coleman is one of dozens of new barbarians plotting the Cheap Revolution, the wholesale shift by corporate customers and techmakers to cheap chips and open-source (often free) software such as Linux.

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SFLan and similar efforts such as Consume.net (in London), Guerrilla.net (in Cambridge, Massachusetts), and Seattle Wireless are reminiscent of the open-source movement, whose members contribute to free software such as the operating system Linux.

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For one thing, the core element of Linux is distributed under a general public license maintained by the Free Software Foundation.

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Indeed, services, support and software tools are where the money is for Linux, since the operating system can essentially be had for free.

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