What about Learn 2 English?
Well, will be best for you US people to learn Spanish... at the actual rate, it will not take long before USA is fully invaded and Spanish become the main US language... in fact, the Spanish worlwide rank of people speaking language is superior to English...
What about US people learning that there is something outside US... something who have several other language...
theres a lot more important features that should be much higher on the todo list than stringtranslation.
Well, localization is a tool who can allow to increase sale... well, best not begin with localization if the person responsible of it will be like the girl in the video below...