2. Windows 7 taskbar: The Dock in OS X means business, but the new, taller taskbar in Windows 7 has nifty features, like live thumbnails that fan out in a row when you hover the mouse pointer over an application icon in the taskbar. Thumbnails are created not only for the windows an application has opened, but for tabs as well. Hover over the Internet Explorer 8 icon and the thumbnails show all opened tabs. When you hover over a thumbnail, you get a full-sized screenshot of a window or a tab without switching the application. Task thumbnails enable faster task switching and more efficient windows management than the Dock + Expose combo in OS X. Like it or not, we believe the new taskbar in Windows 7 is a whole step ahead of the Dock in OS X.