After a long wait and a shedload of work from Bart, the Mozilla Europe crew, the MLP crew and myself, v.1 of the Localisation Trademark Policy is available. Thanks to everyone who gave feedback.
Watch this space for further, more general policy documents in this area.
I filed Bug 258367 – Localization Trademark Policy should allow intl.accept_lanugages (accept language header) to be changed a few days ago, but no one’s responded. Did no one see it? It is the one and only bug in Marketing: Trademark Permissions, so that category probably isn’t watched very closely…