If you have Any lingering confusion about the difference between ARM and WinRT and what Win8 means for Microsoft check this out:
Originally posted on Hal's (Im)Perfect Vision:
Windows RT is the name of Microsoft’s version of Windows 8 for ARM processors, right? It’s aimed primarily at Consumers, right? It’s role in business is primarily in the BYOD realm, right? That’s so 2012! Let’s talk about strategy and where I think Microsoft will go with Windows and particularly Windows RT. And how their strategy may become more obvious in 2013.
The name Windows RT wasn’t chosen to convey a message about Windows moving to ARM processors. Nor was it chosen to convey that it was a Tablet OS. The name appears to have been chosen primarily for one reason, it is an operating system devoted to running Windows RunTime apps. It splits the mainstream Windows product into two families. Windows for running Win32 “desktop” and Windows RunTime applications and Windows RT that drops the legacy Win32 application support. Windows RT is Microsoft’s go forward client operating system, while Windows is the operating system Microsoft will need to keep selling and enhancing for a transition that will last a decade or more, but it will eventually be considered a legacy.
I know I just sent a lot of people’s blood pressure through the roof because today they either (a) dislike Metro/Modern/whatever-you-call-it ,Windows RunTime, or the Start Screen and/or (b) the new environment isn’t really suitable for their usage scenario. But keep in mind I’m talking about where things are going over several releases of the re-imagined Windows. There will be many refinements, improvements, and changes before Windows RT replaces Windows as Microsoft’s primary client operating system offering.