GMGruman writes "Someone at Microsoft either really loves mobile operating systems or can't make up his mind as to which to use, because Microsoft Thursday announced yet another mobile OS, its fifth. The new Windows Embedded Handheld OS will succeed Windows Mobile 6.5 and run on at least some existing Windows Mobile smartphones. It is not the same mobile OS, known as Windows Phone 7, that Microsoft earlier this year said would replace Windows Mobile and break with it in terms of compatibility so Microsoft could better compete with the iPhone and Google Android OS."
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