Mac OS X Leopard's Spaces
AppleInsider provides a look at Apple's implementation of Spaces in their upcoming Mac OS X 10.5 (Leopard) and the origins of such virtual workspaces.
Spaces in Leopard -- like any virtual desktop system -- allows the user more room for their windows to live in. As with any other platform, Apple had to address two inherent problems with virtual desktops: third party developer support and user complexity.
The author believes that Apple successfully addressed both issues to make Spaces a useful addition to Mac OS X.
Mac OS X 10.5 Leopard is expected to be released this month.