One feature I love in the newer Windows platforms is the ability to minimize all windows with a click and show the desktop. This has been a feature I have been dying to have on my Mac.
It appears this has arrived as a new feature 'Show Desktop' (which I really really like so far). My suggestion is to allow assigning a user-defined hotkey for this feature; I use it a lot.
Yes, indeed - Show Desktop tool in version 4.0 can either hide or quit all applications, making it easy to get to the desktop with a single click. You can also set up a keyboard shortcut to activate this tool in Toolbox preferences!