SafeSleepUSB is an open source application that enables users to automatically eject and mount USB and USB 3 drives at sleep and wake modes. The application is easy to use and resides in the menu bar.
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.
