“VirtueDesktops” is a virtual desktop manager for Mac OS. It offers features, eye candy and configurable options that no other desktop manager on the mac has added yet, and is under active development.

Mac OS X-like dock for KDE

Beagle is a search tool that ransacks your personal information space to find whatever you're looking for. Beagle can search in many different domains.

The goal of DeskbarApplet is to provide an omnipresent versatile search interface. By typing search terms into the deskbar entry in your panel you are presented with the search results as you type.

WW2D is cross-platform, free and open-source application similar to NASA World Wind or Google Earth software.