Having so many posts on "global menus", you probably know by now what a "global menu" is. If not, take a look at the above screenshot.
Ubuntu 10.10 Netbook Edition comes with a global menu (not Gnome2 Globalmenu but its own "global menu") which works with some Qt applications as opposed to Gnome2 Globalmenu
, however Gnome2 Globalmenu is still better for GTK applications (for now anyway) as it allows far more customizations then the Ubuntu global menu. But this is not a post on pros and cons for these 2 applications but about installing Gnome2 Global menu in Ubuntu 10.10 Maverick Meerkat.