In WoD, the key bindings UI is split up into panels, much like the Interface Options window. Addons can specify which category their bindings should be displayed in.
I would like to propose that for the sake of consistency, all addons with only one or a few bindings put themselves in the "ADDONS" category (this being a global string that will display as the proper translation for "AddOns" in the user's language):
<Binding name="MYADDON_COMMAND" header="MYADDON"[B][COLOR="Green"] category="ADDONS"[/COLOR][/B]>
-- do stuff here
This will provide a consistent place where users can set the key bindings for all their addons, without bloating the category list with dozens of categories that each only contain 1 or 2 bindings.
Addons with a large number of bindings (eg. Bartender4) are probably better off creating their own category.
I just wanted to get this idea out there before everyone starts updating their bindings. Discussion is welcome!