The gnome-panel interface (fallback mode) is going to go away eventually. Gnome developers have been working to "make gnome-shell work with software-rendering"

The gnome-panel interface (fallback mode) is going to go away eventually. Gnome developers have been working to "make gnome-shell work with software-rendering" so that "Gnome can phase out some components that are only kept alive because they are needed in the fallback mode, which allows more resources to be focused on improving Gnome 3". http://fedoraproject.org/wiki/Features/Gnome_shell_software_rendering http://fedoraproject.org/wiki/Features/Gnome_shell_software_...