Does long-term cell phone use lead to brain tumors?

I'm sharing this link - something to think about as we all rely more and more on our cell phones - not just for a quick call, but email, web searches, twitter....  constant interaction.

ScienceDaily (2011-01-19) -- Research suggests that long-term exposure to microwaves from cellular phones may lead to an increased risk of brain tumors. Although debate continues, independent studies with long-term follow-up strongly suggest an increased risk of brain tumors related to the use of cellular or cordless phones.  ...read more