PreacherTom writes: Music on one's mobile phone is nothing surprising: in fact, it is the entire principle of the upcoming iPhone. Downloading it for free is a different matter; both Verizon and Sprint's service directs to a proprietary store and charges up to $2.50 per song. Cingular plans on taking another route, having announced that they are gearing up to offer free music downloads to compatible phones. They hope to make up the difference through fees from the music subscription services for each new reference. The catch: a $15 per month fee.