Loudometer is a technology that helps you keep track of the decibel level of the fans of your PowerMac or MDD (Wind Tunnel). With Loudometer, you can monitor the noise level of your machine throughout the day and night. It requires PPC and Mac OS X 10.
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.
