MOBILE SOCIAL NETWORKING USERS WILL NUMBER MORE THAN 641.6 MILLION by 2013, according to the latest predictions from Informa. A new report from the company says that at the end of 2008, there were just 92.5 million users of mobile social networking services, but that will skyrocket to between 641.6 million and 873.1 million by the end of 2013. It adds that the most popular mobile social services October 5, 2009
