Calling those who speak Ukrainian, Estonian, Lithuanian, Latvian, Hungarian, Bulgarian or Czech:
We'd love to bring Zimbra to you in your native language!
Our friends over at the Yahoo! Developer Network have even blogged about it in the hopes of attracting some good language people to help us out: Call for Zimbra translators (Yahoo! Developer Network blog)
If you're already here and can do any of those, drop by the translation section of the forums: http://www.zimbra.com/forums/i18n-l10n-translations/