At the core of Google’s phone efforts is an operating system for mobile phones that will be based on open-source Linux software, according to industry executives familiar with the project.
In addition, Google is expected to develop mobile versions of its applications that go well beyond the mobile search and map software it offers today. Those applications may include a Web browser to run on cellphones.
While Google has built phone prototypes to test its software and show off its technology to manufacturers, the company is not likely to make the phones itself, according to analysts.
In short, Google is not creating a gadget to rival the iPhone, but rather creating software that will be an alternative to Windows Mobile from Microsoft and other operating systems, which are built into phones sold by many manufacturers. And unlike Microsoft, Google is not expected to charge phone makers a licensing fee for the software.

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