Navita is a free five language translator for your Blackberry. Its similar to bbtrans also made with a very simple interface. I don't know what translation engine they are using but it seems to be okay and fast enough. My officemate claims the German translation works well and is usable
Blackberry Language Translator is an easy-to-use on-line multi-translation application that helps users to translate words, phrases and does a dictionary lookup. BBTran supports more than 40 languages (Arabic, Chinese, Dutch, English, French, German, Greek, Italian, Japanese, Korean, Portuguese, Russian, Spanish etc
