The advisory follows the release of CDPH findings from 2009, which were prompted by a lawsuit from UC Berkeley professor Joel Moskowitz in his bid to explore possible links between cellphone use and increased risks of cancer. He believes that cellphone radiation poses a "major risk." Other agencies, such as Connecticut's own Department of Public Health, have put out similar recommendations.

The CTIA wireless industry group, which has historically opposed attempts to raise public concerns over phone radiation, isn't taking a definitive stance. In a statement, the CTIA said that health was "important" to its members and that people should "consult the experts."

It's a bold move when some of the companies that dominate the cellphone landscape are based in California. The question is whether or not the advisory will make a difference. Without a definitive link between phone use and health issues, the statement may not carry much weight. And let's face it, telling people to stop using smartphones as they normally do (especially in California) is like telling them to stop breathing. There would have to be a clear risk to make everyone give up devices that have quickly become staples of modern life.