Facebook mobile ads revenue is trying to catch up with mobile users

Facebook mobile advertisement revenue continues to grow, however, mobile ads revenue share (40%) is much lower than share of mobile users of Facebook (70%). I command Facebook for growing mobile ads revenue to respectable numbers having no mobile ads just a year ago. The challenge of reaching full potential in monetizing mobile user remains. Average revenue per user (ARPU) of mobile Facebooker is only $0.30.