RocketDock - RocketDock is a Mac OS X dock clone.
NethServer - NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...
Winstep Nexus - The Winstep Nexus Dock is a FREE* professional dock for Windows. With Nexus, your most frequently used applications are only a mouse click away - and Nexus turns working with your computer into a fun and exciting experience.
ClearOS - A very good alternative for Windows Server, for free
ObjectDock - ObjectDock is the most popular animated dock for Windows.
OpenMediaVault - OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux.