I've had the same experience as everyone else who posted to this thread. From all appearances it doesn't seem to work, and I haven't seen any evidence to show that it's *ever* worked.
I can see that it's contacting Babelfish (maybe I have to try with Google Translate? didn't try that yet) and getting the response, but it doesn't look like it's writing Babelfish's answer to the terminal. Bummer.