Gammu and Wammu are translated to several languages, but the translations are far from being perfect.
The contribution is easy and documented on translating page. Translating brings you great opportunity to contribute to free software without programming skills, so if you know some language, feel free to start as soon as possible! New Wammu release is getting closer and it will include your work.
Vydal Michal Čihař dne 24. listopadu 2009