Lots of people love their cellphones. Facebook, so far, is not a big fan.Amid the jaw-dropping financial figures the company revealed last week when it filed for a public offering was an interesting admission. Although more than half of its 845 million members log into Facebook on a mobile device, the company has not yet found a way to make real money from that use.”We do not currently directly generate any meaningful revenue from the use of Facebook mobile products, and our ability to do so successfully is unproven,” the company said in its review of the risks it faces.
http://www.nytimes.com/2012/02/06/technology/facebooks-mobility-challenge.html