If you have ever used `Cmd` + `Tab` on OS X you know what I'm looking for. This is actually one of the few features of OS X I love.

I'm using Compiz and in the Static Application Switcher I have set it so I can switch between applications in the same group using `Alt` + `~`. I've looked through all the different plugins and have searched around on the internet but haven't been able to find anything that lets me switch between the groups. Something that lets me hit `Alt` + `Tab` and it'll pop up only one option for all the open apps. Is there any way to do this?

Edit:

I use Gnome3/Shell at work and have noticed that Gnome3 implements this feature. Would be nice if we could get it in Unity, too. :)