Winfo is a utility for finding information about the window or menu bar icon currently under the cursor. It can be used to copy labels to the clipboard, and to identify the app responsible for a window or icon. Additionally, it can be used to take screenshots with the command line using the window ID.
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.
