http://code.google.com/p/plugin-multitranslate/
(text from the project page) A web2py app plugin that allows role based translations with merge, partial file translation assignments, translation comments and other features. It is currently functional, although it needs proper tests (multiple environments and unit-testing), css fixes (for translated highlighting) and layout design. Working features layout translation bar (links to the translation panel and shows stats) Apply for translator access Manager panel: Accept translators Assign partial or total language translation to user Merge multiple translations with translation precedence rule. Edit / comment translation Translator panel: List translations Edit translation Comment translation How to quickly add multitranslate to your project: In the app admin interface: install the multitranslate plugin add "translation managers" and "translator" groups add a "... manager" membership Then, you can put the multitranslate link bar in a view (i.e. layout.html) with this command: {{=plugin_multitranslate()}} web2py plugin multitranslate is released under the terms of AGPLv3 license