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...

In brief: App stores are hot, but what are the challenges and where is the opportunity? This analysis draws from a variety of sources - including a recent Airwide Solutions survey, an exclusive interview with Vodafone UK's Jonathan Kelly, and a thought-provoking post from Alfred DeRose, Co-founder & Managing Director of Tego Interactive, a Web and mobile product and services company providing development and inte...

Editor's note: Apple has the first-mover advantage, and its App Store sets the bar. The result is a buoyant market for apps and ample opportunity for fast-followers to (perhaps) do one better. Benjamin E. Jacobsen - Co-Founder of Mobspot, Inc., a company championing "Mobile App developers and App users on any platform," and a new author to MSG - gives his take on the size of the market and the prospects for other pla...