If the San Francisco Department of the Environment gets its way, starting as soon as next month Bay Area residents might start noticing the radiation levels of cellphones displayed prominently next to their respective price at retail outlets. This is, of course, despite no definitive research that the handsets cause harm and the FCC's insistence that the devices sold to consumers are safe. The proposal is being endorsed by Mayor Gavin Newsom, who as it's noted is not about to stop using his iPhone anytime soon. Not to worry, Maine, you'll still keep the top spot for most ridiculous cellphone warning label