Alt Tab is a very useful keyboard shortcut in Gnome 3. But why isn't it available with a mouse click? Using the the 'Activities' button or hotspot is just too busy when switching between applications.
I've been using Windows 7 a bit recently and I quite like the way Windows does application switching: application icons appear in the bottom panel and hovering over the icon brings up images of open documents.
Gnome is more minimalist, and doesn't show running applications in the panel. But why not have a button in the panel for application switching, with the same function as Alt Tab for us mouse-bound users?