My DH also uses his (legal) handsfree, which is one of those proper ones, like a cradle in the dashboard. I thought the use of headset type handsfree kits whilst driving was also illegal now ?
DH has the type of job which means he frequently has to drive to the South East (we're 25 miles south of Brum), which means several hours in the car each way. He also has the sort of job which means that he is using the phone very regularly, so his mobile is essential to him. Outlawing the use of mobile phones in cars under any circumstance would make DH's ( and many others) working lives very difficult indeed.