Eh I don't care for voice commands, having devices always listening to me still weirds me out. Even if the touchscreen is quick to get used to, you still can't use it without looking at it as easily as you can with buttons and knobs because the whole screen feels the same. I can change the music, climate control, etc in my car without ever taking my eyes off the road just like I can send texts and emails much faster with my BlackBerry's physical keyboard than with a touchscreen phone. Touchscreens may look cleaner, but they are a step backwards as far as functionality goes. Also, this may be set up differently with different manufacturers, but when I was working at the Volvo dealership, I found it incredibly annoying that it took multiple "button" presses to navigate through the touchscreen interface to get to the controls you wanted. You can't change the music and change the temperature from the same screen. With the old-fashioned way, everything is immediately accessible.
As for keyless start, I suppose I should specify--I can see the usefulness of being able to warm your car up before you get outside. My only experience with keyless was with Volvos, which I'm pretty sure couldn't be started unless the key fob was in the immediate area of the car. There was a start button inside the car that you needed to press and it would only work if you had the key on you, so really the only difference was that you didn't insert the key and turn it, just extra technology for the sake of extra technology. Hopefully this has been completely replaced by remote starting by now.