Yikes! Don't carry in your pocket!
RIM, the manufacturer of the BlackBerry devices, fails to warn users that if you carry them in your pocket, you'll be exposed to more radiation than the FCC allows. Seriously, the information is on their website, but not anywhere in the product literature that comes with the product.
Don't carry them in your pockets, no matter how cool you want to be. Use the holster if you have to carry it around on your body. The radiation levels of many of the BlackBerrys are the highest of all cell phones...keep them away from your body at all times!!