I have a multi function touch screen in one of the cars and as cool as that may sound, it simply doesn't work - be it a GM vehicle or Lexus.Major-mondo-mega safety implications, depending on the application (driver operating vehicle, etc). And the touch-enabled screens tend to be poor(er) in terms of glare-resistance w/ regards to day/natural light (namely sun).
Voice-control and/or remote touch-interface seem to be the trend as of late.
But yea... touchscreens = cool!
The touch screen options were very limited back then. My car has so many choices and sub screens and dialogue windows it is ridiculous. With the car bouncing on the road, my not that fat finger has a 50-50 chance of hitting the right spot. Having driven this car now for 15 months, I will not buy another car with a touch screen because it will be the cause of my untimely demise...My 10-year-old Acura TSX has a touch-screen AND voice. And it works great, BTW. Sad to see everyone moving away from it. Figuring out how to get a knob to select a button that you could just touch is MORE WORK, and more likely to cause an accident. Dumb, dumb, dumb.