Switcher

What it does: Are you a fan of the Exposé feature that Apple builds into its operating systems?  Do you even know what I'm talking about?  If not, here's a preview: Exposé is analogous to Windows Vista's Aero-based windows switching function (Windows Key + Tab).  Only, instead of displaying all of your current windows in a cascading pile, Exposé resizes and tiles these windows for easy finding.  They're live screens, so you can see exactly what you're switching to in real-time.  It's a great feature of the OSX operating system that, thanks to the freeware application Switcher, is now yours for the taking, Windows users.