http://googlemobile.blogspot.com/201...e-app-for.html
The new app accepts voice input for 15 languages, and?just like the web app?you can translate a word or phrase into one of more than 50 languages. For voice input, just press the microphone icon next to the text box and say what you want to translate
Only drawback is that you must be online with phone to use it OR basically save your most used sentences and play them when you need it.