Techradar posted an analysis why legacy app support is a big deal for Microsoft's new OS

Windows 8 is coming. We've heard all about it, poked around with it and really rather like it.What Microsoft is doing is good and, what's more, it might breed a whole new range of multipurpose computing devices that go beyond the tablet.But the OS presents one massive issue that Microsoft has yet to fully answer: how will it tell people they can't run legacy apps on ARM versions of the OS?At a closed 'Windows on ARM' demo I attended at CES in January, Microsoft's Steven Sinofsky made it crystal clear that legacy x86 apps wouldn't have any way of working on new ARM-based Windows systems.

  Analysis: The elephant in the room for Windows 8