Hyphenation is provided (in some form, some people report that it isn't very good sometimes) for:
- English (en_US)
- French (fr_FR)
- Spanish (es_ES)
- German (de_DE)
- Italian (it_IT)
- Portugese (pt_PT)
I suspect that the regional code isn't important, but these are the language/regional codes installed on the device. Attempts to add additional hyphenation dictionaries have, so far, been futile.