yesterday we submitted the new strings for Moodle Mobile 3.6
You can find the strings to be translated in the component: local_moodlemobileapp version 2.6 (you only need to translate the strings for that version, no need to copy the strings into following ones).
In this new version, to be released around the 11th of January, we are adding support to American English, Khemer and Kannada languages.
PS: Remember that you can find all the necessary information to contribute to translating the app in this link.
Thanks for your contributions! Juan