[Zope-dev] Page Templates: Any plan how to use PT's for I18n and browser dependant templates etc?

Hi, Are there any plan for how Page Templates would handle Internationalization and browser dependent templates. As fas as I can see the METAL definitions are inside the template. That would mean one would some external service to route it to the correct template. For instance: use-macro="portalskins/macros/useme" portalskin in this case would return a template based on the HTTP_USER_AGENT, REQUEST.portal_skin and HTTP_ACCEPT_LANGUAGE (and others of course). How would this effect the page cooking and template cache? TIA/Johan PS. Page Templates are great but I have yet to figure out how to use them with the "Content is folderish" pattern.