The article was a little hard to follow for me because I dont use a mac. I have many of these features in my current desktop, but the mismatched vocabulary was difficult. linking to outside resources or more pics would be helped.

As an aside, I use the keyboard shortcuts way more. [super + spacebar] is much faster and easier than finding your pointer, navigating to an icon to launch dashboard, and then finding the icon that you want to launch. since both of these do the same thing, you might not see a need for dashboard because you use the alternative. remember the reverse is also true for those people who use dashboard and not the shortcuts.