The iOS and Android app Word Lens is truly amazing. It will translate words on signs, menus, other text from one language to another.
Available language pairs:
+ English ⇆ Russian
+ English ⇆ Spanish
+ English ⇆ French
+ English ⇆ Italian
+ English ⇆ German
+ English ⇆ Portuguese
The language packs used to cost money, but since the app was purchased by Google they are now offering all language packs for free. They still work like an in-app purchase, but it is a Free in-app purchase.
Make sure to pick this one up quickly. You never know when they might change their mind.
Android - https://play.google.com/store/apps/details?id=com.questvisual.wordlens.demo