The largest study of its kind has suggested that the link between cell phones and brain cancer is still inconclusive. The study followed 13,000 cell phone users over a 10 year period. Prior studies of this type have been funded by handset manufacturers and has relayed information with a noticeable skew. A new study is underway to follow handset users more closely over the next 30 years to study long term health effects. It seems we are destined to never find a conclusive answer to this elusive question.