http://www.360desktop.com/

360desktop is an Unlimited Scrolling Desktop [Featured Windows Download]

Windows only: Freeware application 360desktop turns your Windows desktop into a 360-degree virtual desktop. Using the application's unobtrusive slider, 360desktop scrolls around a cylindrical, widget-enabled desktop until it returns back to the start. As you can see in the video, some of the application's features are a touch frivolous, and unfortunately you can't yet use your own panoramic photos as your 360desktop wallpaper. That said, if you've always been interested in organizing your workspaces with virtual desktops or extending the size of your desktop but haven't found an application that fits your likes, 360desktop might be worth a look. 360desktop is freeware, Windows only.

from Lifehacker by Adam Pash