The Application/Places/System menus do indeed not require a separate click to move between them, though the start point (the menu name eg 'Application') is much larger than the start point in the indicator applets, so a slight movement of the pointer to the side will not take the user out of the Gnome menus like it does in the panel.
The Application/ Places/ System menus do indeed not require a separate click to move between them, though the start point (the menu name eg 'Application') is much larger than the start point in the indicator applets, so a slight movement of the pointer to the side will not take the user out of the Gnome menus like it does in the panel.