Thanks for your answer, about the translation if you have .ts file where all strings used in the application are located, you can just register in transifex and put it there like wazapp, meecast and mieru (someone else who knows better can fix this if I'm wrong). I imagined you having one since your application supports both English and Russian.

Oh and link for Qt Linguistic: http://qt-project.org/doc/qt-4.8/linguist-manual.html