MagicKeyboard is a Mac utility that turns a MagicTrackpad (or other multitouch device) into an iOS-like keyboard or a numeric keypad.
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.
