Hi!!!! I know a couple of things about voice recognition. 1) You need a special headset with a microphone with boom- pick-up problems. 2)There are bugs in the system that allow for hackers. I've heard when the system was first introduced, it had problems recognizing speech- ( Oh Well, maybe that is cured by now). Here is an article to examine:
http://.infoworld,com/article/7/02/0...eechbug_1.html