Google offers 125MB-sized language packs for offline use in Google Translate. In times where you can’t rely on internet connection, you will be able to translate from and to 50 languages. According to Electronista the packs cover navigation and basic dictionary to get you through your trip. Also, support for translating vertical text has been added with the aid of the device’s camera. In the near future we could see this working magic with Google Glass.
The update bring the app to version 2.6 and can be downloaded from Play Store. There is no iOS version as of yet.