It's not just that your hands are occupied while texting, or your mind is elsewhere, even your eyes are not on the road.
While you talk to someone who is physically in the car with you, or even on speakerphone, your eyes are free to roam the road ahead. If you are texting, your eyes have got to look down...if even for a second. It only takes a second....
However, I was distracted just now on my ride home, not by my phone, or talking to anyone, but, by the driver behind me. It was dark, it was snowing and I was going a wee bit below the speed limit, as I was focused on getting home in one piece. The guy in the big truck behind me apparently thought that if he rides my bumper, I will go faster....which I did. I went faster than I thought it was safe to, only because the big headlights were in my backseat. He made me really nervous...and I was worried that if I skidded, he would ram into me...and then I would have a mess on my hands.
So, everyone, please be curtious to other drivers - and keep a safe distance.