Used by over 2.8% of the web and by over 3000 government web sites, Joomla is the leading Open Source CMS. Making web sites truly multilingual, rather than relying on automated translation tools, is now a requirement. The latest release of Joomla makes building multilingual sites considerably easier, while also making them more accessible across different user agents and form factors (e.g., desktop or laptop computers, mobile phones, or tablets). This presentation will showcase how these new developments can be used in Joomla to greatly reduce the burden of building and releasing multilingual sites.