Kawa is an open source input source switcher for Mac OS X that enables users to quickly switch between keyboard inputs with user-defined shortcuts. Instead of having to remember the previously-selected source, Command Space can be used to quickly switch between them.
LiquidMac uses a particle system to imitate liquid and responds to laptop orientation.
Wineskin Winery creates Mac OS X ports/wrappers for Windows programs/games, with an easy-to-use GUI, integrated Wine, X11 and an installer.
