Android/iOS: Word Lens, the app that can translate the words and language it sees in real time, is free to download today.
Google has purchased Word Lens' parent company, Quest Visual, and their first move was making the app free to download. Additionally, all of the language packs added since it's release are available for free within the app too. We took a look at it ourselves back in 2010, and came away impressed with how well it worked. Hit the links below to download it and try it out for yourself.
Word Lens| iTunes App Store via TUAW
Word Lens | Google Play Store