Could mobile phone use improve driving?

[Martin Cassini]

If mobile phone use is banned because it takes our eyes off the road (I often ask), should traffic lights and speed cameras be banned for the same reason? Now simulator tests carried out at Kansas University show that using your mobile might make you a safer driver. The monotony of driving, say scientists, is itself a risk. 45 people who drove for 30mins while talking on the phone were statistically less likely to make mistakes. (From a NIB in Metro.)