Facebook added a new translation application to Facebook Connect to quickly help the social-networking site change the language settings on Facebook. If you want to try out the tool, Facebook created a handy demo of how the app’ll work. Be warned, though: you’ll have to be handy with HTML to use the tool. Translations uses XFML – Facebook's own mark up language, which’s an extension of HTML. Essentially this means, that when you’ve created a translated version of your website, it’ll be accessible to users after they log into Facebook Connect. The Translations for Facebook Connect app is to be announced officially at this year's Future of Web Apps (FOWA) conference in London, noted.
More info: Facebook Connect