Gizmodo ran a side-by-side test of Apple’s Siri, Google Now, and Microsoft’s new Cortana virtual assistants. The results were neck and neck, with each displaying its own quirks, but the short video is fun to watch. follow link
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Expose Shortcut for Arrange All Windows
In Expose in Snow Leopard, with all windows visible, press F9 (or the Expose key [F3] on recent Mac laptops), then press Command-1 to arrange the windows by name or press Command-2 to arrange them by application.
How Siri Fares Against Google Now and Cortana