I think it is a natural progression of the technology. It is not so intrusive in a car as a device listening to you in the car is not like a device listening to you in your bedroom. Also, you need that hands-free help. If your device in the car could talk to you, look up information, find the right music etc. That would be really good. Something that is also wired into some basic controls in the car. Perhaps even controlling internal lighting, air conditioning etc.

I am sure we will see it soon.