John Gruber on the Windows 8 demonstration that was made earlier today:
The new Windows 8 touch-based UI, revealed earlier today at the D9 Conference, looks good. It’s clearly drawn from the same inspiration as Windows Phone 7, and shows some seriously innovative UI thinking. The idea of tiles rather than icons is rich, and strikes me as even better-suited to bigger screens than phones. The snapping concept is an interesting way to make use of a bigger screen to show two apps at once. Displaying side-by-side content isn’t possible on iOS, and no one’s yet solved that problem in the post-windows (note lowercase “w”) UI landscape.