Hi! I see a pt_BR translation has been added in v1.2.3, but it seems to have only a few strings translated and, well, some of those that have been translated seem to have come from some automated translation tool rather than having been actually translated. So, since I've finished my own, which is complete, and isn't Google Translation-based ;-), I think maybe you might be interested in using it instead. You can find the full PO at http://pastebin.com/7gSwNjft.