Ringtones: Music to Music Moguls' Ears.

Reports on the continuing integration of wireless technology by the music industry, specifically the use of ringtones by cellular phone customers. Details of rapper 50 Cent's involvement with ringtone technology during the production of his album entitled "The Massacre"; Author's view that cellular phone technology has enough revenue potential to warrant the establishment of mobile-business divisions at every major music company; Challenges facing the music industry regarding Internet based piracy; Comments from media analyst Mark Harrington regarding the music industry's integration of new music formats.