Sounds cool. Free is nice. Wonder if this is stable?
With DM2 installed you get 4 virtual desktops, custom Open/Save dialog folder locations (can you say godsend?), and the ability to minimize any window to the system tray. Also, right-click the minimize button to send any window to a floating, transparent icon that stays on top but doesn't crowd your taskbar.
Read article at: Lifehacker, the Productivity and Software Guide