When my son is ready for his own computer, the windows will be gone from Windows. Microsoft 's PC operating system will still exist, as will Mac OS X. But, in the next few years, we'll say good bye to the window metaphor where each application you run is displayed in a draggable box that has a title bar and widgets.
Microsoft has already signaled its intent to kill the window metaphor by making the tile-based Metro UI the default screen for Windows 8. How long before Mac OS and even Ubuntu also default to touch-friendly UIs that don't have tiny widgets?