Over half a billion music mobiles shipped in 2007

Researchers at MultiMedia Intelligence say almost 300 million more music phones were sold last year than stand-alone personal music players. Worldwide music phone shipments exceeded 500 million units in 2007. They also report that the global mobile music content market of ringtones, ringback tones, streaming audio and full-track downloads) will hit $6 billion this year. By 2011, they estimate that half of all mobile phones will be music phones, which they define as having a memory expansion slot and the ability to play music. [Sources: News.com, Cellular-News.com]