Here is yet another research that finds no link between cancer in the head and radiation emitted from cell phones. It's worth a read if you've got the time.
Coming from a science background in the labs, I realized that experiments and researches can be skewed one way or another. It's not that hard if you're determined. So with another study out on whether cell phones causes cancer or not, we have to take it in with all the other researches that are available on public.
There are those are determined to make sure there is zero link between the radiation coming from our mobile devices and possible ailments while there are others who are determined to make that link.
I'm sure this debate is far from over. There is going to be a lot of back and forth but the main point to keep in mind is this: does increase use of cell phones actually cause brain tumors. Studies that link cell phone use and possible risks with offering links are entirely another matter.
Personally, I would like to see more effort into this question. But I would like it free of agendas. After all, I happen to keep my mobile devices in the pocket of my jeans. I sure would like to know what it's doing to me down there.