Windows 8 hit physical and electronic store shelves this morning, and Mobile Nations' own WPCentral was up early grabbing Surfaces and giving everything a look. For iPhone, iPod touch, and iPad users, however, you can also now get your hands on Microsoft’s latest and greatest operating system. If you are a Windows user, like most of us, you can download Windows 8 Pro and install it straight onto your PC as an upgrade to an existing Windows installation or set up your computer as a new PC and wipe it clean.