OSXPM (OS X Package Manager) is an user-friendly application that allows users to create, install, and delete packages for Mac OS X. It includes a shell API for developers to use and is fully shell-scriptable.
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.
