There is discussion over the public health impact of mobile phone use.
There have been studies reported which shown no link between mobile phone
use and brain tumours, however these have been criticised on the basis of
length of study - ie not following people up for long enough to detect
cancers where there is a long latency b/w exposure and disease

Another important factor mentioned in the debate is whether there is a dose-
response relationship - and if so, whether this is being adequately
studied/quantified.

In Australia, a public health measure which has been taken to partly
address this is that all new mobile phones have to display how much
radiation they emit. There is also a move to get the phone companies to do
this for existing mobile phones.

As with all public health questions, a way of objectively measureing the
problem is a good way to start assessing its impact. This recent move may
help accumulate evidence that there is an adverse health effect (if indeed
there is one).

In addition to possibly causing tumours from the radiation (as yet
unproven), another adverse effect of mobile phone use has been their
implication in road traffic accents. Various surveys and studies have
suggested this - hence the banning of use of mobile phones while driving.