Just saw this on the news:

Last year, results of a large study found no clear link between cellphones and cancer. But some advocacy groups contend the study raised serious concerns because it showed a hint of a possible connection between very heavy phone use and glioma, a rare but often deadly form of brain tumour. However, the numbers in that subgroup weren't sufficient to make the case.

http://techcentral.my/news/story.asp...19&sec=it_news

Maybe in future, handphones will be restricted/banned like they do for cigarattes???