Duplicate Windows is a Mac OS X tool that allows users to visually copy any window live and on-the-fly. It is useful for presentations, as it enables users to display windows across multiple monitors in extended desktop mode, or to keep an eye on windows while watching web videos. Duplicate Windows lets users select from among all window objects known to the operating system, and the new copy changes its size to match the window they have chosen. Resizing the new window maintains its aspect.
Wineskin Winery creates Mac OS X ports/wrappers for Windows programs/games, with an easy-to-use GUI, integrated Wine, X11 and an installer.
LiquidMac uses a particle system to imitate liquid and responds to laptop orientation.
MiniSwitch
