What the operating system on it is I care not a whit.

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One has to appreciate the chutzpah of Donald Leka, chairman and CEO of Transmedia, maker of the Glide OS app that allows individuals to fluidly access their files no matter what mobile or desktop operating system they reside on.

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The coloured back of the phone is interchangeable - and the operating system's interface will change depending on what type of cover you have.

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And this is exactly what Alibaba just did by launching Aliyun, a mobile operating system based on Android and tailored for the Chinese market.

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The way to get true integration is to control everything from the operating system down to what kind of saw you are going to use on the glass.

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What you make of the handset is as much a judgement of the operating system as it is on the construction.

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Palm wants to bring its WebOS operating system to other U.S. carriers, which means Sprint has a limited monopoly on what makes the Pre special.

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Apple, on the other hand, has a very closed operating system, giving its developers far less leeway in exchange for what the company says is a smoother, better-developed user experience.

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