It's not just the operating system's user interface that comes in two flavors, Metro and desktop. Applications themselves will also be available in the two different formats.
The Metro applications, like Internet Explorer 10, pictured above, have a distinct touchscreen look and feel to them, simplifying the layout to just a few large buttons and boxes.
But if that doesn't suit you, users can quickly load their browser session -- or calendar, e-mail, etc. -- in desktop mode with a click of a button.
Many applications will have both Metro and desktop versions, but some apps will only work with Metro, and others will work exclusively on the desktop experience.
NEXT: Apps and keyboard