A new report from Informa Telecoms & Media concludes that the number of mobile social networking users exceeded 50 million, approximately 2.3% of the global mobile user population on December 31 2007. In 2006, Mobile Social Networking revenues exceeded US$1.5 billion and more than doubled in 2007. By 2012 revenues generated from all business models in this industry is forecast to reach US$28.9 billion in the most conservative scenario and $52 billion in the high growth scenario. (Cellular News)