In Unity you get only one panel which is global like on the Mac. It combines
the top panel with the menu bar for the application. This can be confusing
for anyone not used to it. IMO, it is a nice touch but it is limiting. You
can only have one application per workspace and running in a window is
possible but does not make sense because the menu for the application is a
long way from the window. This is just a heads up for anyone considering
11.04 with Unity. It takes some getting used to.