Bowtie is a free application that allows you to control iTunes, iPhone, and customize shortcuts with support for Last.fm Loving and Banning. It also has a powerful HTML5 CSS JavaScript based theming system.
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.
