Nasty weather conditions, a press on regardless attitude and using a mobile phone in flight can't have helped matters. If using a mobile in a car is so dangerous, how much more distracting is it in a helicopter in intermittent IMC at low level with tall structures all around? An accident looking for somewhere to happen in my opinion. The AAIB special report published in March 2013 gives a considerable amount of detail of events leading up to the crash, certainly enough for inferences to be made.