Crudely, I admit, I tried to type the four letter word that rhymes with duck in an email reply to someone, and the program changed the f to a d !!!! I didn't realize that we were being censored. What is next???
They were sensoring in the voice input. When every you said a "curse" word, you would get ***** for the offending word. I found with FroYo that you can disable this by going to Settings / Voice Input / Voice Recognizer Settings / SafeSearch and setting it to Off.