[sp4rki]

So what are the speech-impaired to do then?

When I'm driving I find it less distracting to adjust the AC or the music via knobs, than to use the voice activated calling function. Mind you my cars speech recognition is quick and superb, but skipping a track, adjusting a mirror, or setting the air conditioner are automatic and don't require me to focus on anything else but driving. I doubt voice everything will make anything safer.