Such confusion. I use Emacs key bindings myself, but I suppose Gnome 3 will eliminate them, and then I'll have to do without or switch to KDE.
By the way, for those who haven't discovered it yet, the way to add Emacs key bindings to Gnome programs that haven't eliminated the option yet is to go in Gconf to /desktop/gnome/interface/gtk_key_theme and type "Emacs" into the text box.
I don't understand why they're not on by default, in addition to Home/End/etc. buttons. Would it be so bad if somebody accidentally hit ctrl-A and their cursor moved?