Cell phone useage vs cgms and breast cancer?

I have run into a few articles recently about women who kept their cell phones in their bras and breast cancer like this one:

http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/10/23/EDN71G0OKM.DTL

So, when this article came out, I thought maybe it isn't the phone, but the bluetooth connection. Then I wondered if you wear your cgms in your bra, since they have bluetooth connections with the sensors, would that increase your chances of breast cancer?