Wargaming.net just released a Russian version of a new WoT mobie app:
World of Tanks Asistant, available at the moment for any mobile devices powered by Google's Android. The scope of the app's features at the moment is still pretty limited: you can browse your statistics and leaderboards ratings, as well as see what's in your garage and how many credits you still have. However, the developers promise, that it's only a start. New features are incoming as well as an iOS app, WoT related minigames as well as feauters, that allow you to get ingame bonuses by using the app. And hopefully an English client is in the woks, too.