I'm working on a Wordpress plugin that aims to solve content internationalization issues. The plugin enables users to publish content in different languages. It also offers a nice language navigation, so the visitors can switch between available languages.
I've already achieved a good result: the plugin adds custom fields with WYSIWYG editor (according to the languages enabled by the administrator), so it becomes less boring to edit and publish translations of posts and pages. The only problem is:
I haven't encountered a clean implementation to provide menu internationalization. Does anyone knows how to add custom fields to the menu administration screen to translate menu itens? Or maybe an alternative manner to handle that multiple language navigation deal?
ps: I don't intend to add any kind of tweaking to Wordpress core ;]