Christian Forsberg wrote an article on how to create multi-lingual and globalized .NET CF applications. Nice. The sample application looks a bit similar to the WorldClock sample application I wrote a while ago, but of course with more info and without using complicated to set up custom controls.

Note that you can also use the form properties Localizable and Language in the designer to create multi-lingual forms. What that doesn't provide by default is a language switching menu and a dynamic refresh of the form with a newly selected language. You can resize the forms in the designer though and the language user interface switches along with the device language on multi-lingual Windows Mobile 2003 devices.