Microsoft's Windows 10 Mobile is a very different OS from previous versions of Windows Phone in one respect: it is a more full-featured OS. This feature should not surprise anyone as Windows 10 Mobile share the same kernel, some APIs, and other coding similarities with Windows 10 for PC, Windows 10 on Xbox One and even IoT. Logically, this should mean that Windows 10 Mobile can be pried open to reveal its internal file structure like a true OS. Think of Windows Mobile and Android, for instance.
Full story from the WindowsCentral blog...