Google released an update for Google Translate which allows you to enter conversation mode (a very handy mode if you're in a country where you lack advanced language skills)
This video gives a demonstration of how this feature works and how it could potentially be used.
Featured on Wired and Gizmodo!
http://gizmodo.com/5732446/this-will-change-everything-google-translate-android-app-translates-real+time-speech
http://www.wired.com/epicenter/2011/01/google-translate-real-time/