I propose a pretty interesting and, potentially, great feature for Wiki Android app and (possible) web service. So, if current article not exist for specific language, Android app should offer to automatically translate article/page to specific language by using Google translator (or if you can find better translator, any of 'em).
I believe, Google will be glad to offer their translation service for free for Wiki; also, some cashing should be used (to decrease Google translation API calls number). BTW, it's just an architectural questions.
This feature will be pretty useful for readers, and, probably, for editors; so, there are lot of possibilities will become available after implementation!
P.S. I'm very sorry but I don't know how properly submit feature request to you guys. Hope, I did everything fine...