Tongseng is a Mac OS X software package which allows users to send TUIO events to their multitouch applications. TUIO is an open framework designed to provide a common protocol and API for tangible multitouch surfaces.
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.
