Word Lens is the kind of app that might not get daily use, but when you do fire it up, it can save your bacon with fast offline translations. This is not just any translation app, though. Word Lens uses your device's camera to overlay the text translation using optical character recognition. Well, this app just got a nice little update to version 2.1 with some new features.
Word Lens now supports Portuguese ⇄ English translations, but it's not included with the app. Word Lens has a slightly confusing payment system. The $4.99 paid version comes with one language pack of your choice.