Researchers in psychology report that hands-free cellphones are no safer for drivers, thus suggesting that the New York law prohibiting use of cellphones without a hands-free device jumped the gun. They actually demonstrate that talking on the phone (of any kind) impares driving more than listening to audio books or talking to a passenger. Even if you think you can talk on the phone and pay perfect attention, you can’t. I wonder why that is… Is it a physiological problem of the adio quality of a phone conversation, or something about the context-shift between you and your conversationalist?