Dockyard is a "dock switcher" for Mac OS X. It allows you to have multiple docks and switch between them with one click. You can even have multiple Dashboard configurations along with your docks. Dockyard now comes in three forms: a menu extra, which appears in your menu bar, a widget, and a normal application. All three programs were created with Apple's Cocoa API, using the Objective C programming language. This version of Dockyard lives conveniently up in your menu bar. If you want to use the Dockyard menu extra, you must first get a program like Unsanity's Menu Extra Enabler to allow it to work.
What's new in Dockyard
Note: Dockyard is on longer developed or supported