All is in the question. I downloaded folder sync lite from google play and I tried to add an ubuntuone account. Folder sync just asked me a local uniq name. Then there is a buton with "valid acces" but when I click on it a page says loading but nothing append. The app does not ask me any login or password informations. Does somebody succeded in localy synchronize a folder? I can use the ubuntu one app but document are not accessible without internet connection.