2011
Review: Google Translate for iPhone -- you speak one language, the app speaks it back in another language - iPhone J.D.
by night.kameFor example, make sure your the app is in English to French mode, press one button in the app, say to your iPhone "where is the train station," and then a second later your iPhone displays "où est la gare" and you can tap one button to have that spoken in French so that the person in Paris can hear and understand you and point in a direction.
Si à Paris on me demande "où est la gare", je réponds "quelle gare ?" !