I take the cell with me when I go out on rides alone, in case something happens. I have occasionally seen a roadie talking on a cell while riding, but maybe once or twice. If I do see one on a cell, they're usually stopped. Usually, the cell-phone talkers are just yahoos on bikes, like one moron I saw once, wobbling along and blabbing. And endangering my life! Often I see roller bladers yammering on their cells. What bugs me is how people, especially on bike paths, seem to be paying attention to everything but where they're going and what they're actually doing. Another of the many reasons I stick to the road!