Slicer is a powerful window management app for Mac OS X that allows users to divide any window into 2/3, 1/3, 1/2, 1/4, and 1/8th screen sizes. It is especially helpful for dual-monitor setups, as it enables users to mix and match applications in their layout and make the most of their screen's real estate.
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.
