Comment 7 for bug 667245

There is another advantage to this approach:

When there are too many launchers, some of them will shrink to make space. The problem now is that they don't take into account whether they are apps you may want to return to, they only take into account their position in the dock.

With my proposal, docks could be shrunk according to the workspace they're in: that way, launchers in the active workspace would keep their normal size, while those in inactive workspace would shrink first if needed. I'm attaching a mockup showing what I mean.