I _know_ they have this far only studied brains and normal detached cellblobs. What has NOT been studied, how a cellular phone in a front pocket of ones trousers having GPRS/UMTS/WLAN-connection somewhat active affects testicles, prostate, ovaries and such in a long term. We may have lots of cancers coming in the future years and everyone hits their forehead ....uhhh we didn't think about data-connections in the trousers at all.