Per Request, here's a thread for people to post their cool tips and whatnot about Leopard I'll start with the ones I posted to the front page Photo Mosaic Screensaver: Choose a photo album from the Desktop & Screen Saver control panel, then click on the 3rd "Display Style" (Mosaic). (ed note: Very cool.) iTunes Visualizers (iTunes -> View -> Visualizer): Lathe, Jelly and Stix Spotlight can be used as a calculator Control Panel -> Speech -> Text to Speech. New Alex Voice in Leopard. DVD Player with Chapter Index and Full Screen Controls Retro and Security screensavers are included in the Developer Tools (instructions) Coverflow works for fonts.