the voice comman feature of the eris is pretty interesting. long press the green call button to bring it up, here are some suggested commands that came built into the my touch
some work, some dont, if you try one let us know if it works or not
i do know that you can say "open (app name)" and it will open any app on your phone, it's pretty good, even got bonsai blast...lol
Open <app name>
Call <contact> <place (mobile, home, etc) >
Open battery info