The number of American mobile-phone services offering ring tones and video clip downloads is rising rapidly, new research shows. Almost 23 percent of mobile-phone owners--around 30 million ...

Digital music service Napster has unveiled a new store aimed at selling ring tones for mobile phones. Created in partnership with Dwango Wireless, the Napstertones service offers most ring-tone ...

Angela Landon's boyfriend calls her on her cell phone, and she's treated to the celestial strains of Handel's "Hallelujah Chorus." When it's her family in Texas calling, her phone plays the theme from ...