A further surprise in that experiment was that it makes little difference if the phone is of a hands-free design. It seems that the danger is entailed more by the fact that the user's attention is diverted from the driving task than anything to do with the mechanics of holding a phone and a steering wheel. Using computers is an absorbing activity. That is the source of much of the amusement we derive from using them - which is fine as long as that is all one is doing at the time. If people are to start doing at the same time as they are supposed to be controlling a car, then disasters will result.
Responsible drivers pull over and park while they use their phones.
Assertions that listening to a Web page is no more distracting that listening to talk radio are simply wrong. Anyway, the very design of Web pages is intended to be interactive. In-car Internet interfaces may seem an inevitable development. Association between cellular-telephone calls and motor vehicle collisions.