Interested in running Windows from your Intel Mac but don't want to restart to switch operating systems? Parallels has released their first production version of their virtual desktop system for Mac OS X. Among its many options is running any version of Windows from within OS X (inside an OS X window), and, cooler yet, a fast Operating System switcher that lets you switch between OS X and Windows from a menu. Check the jump for a video of it in action.

Parallels video demonstration
(Courtesy O'Reilly Mac DevCenter)