This document discusses the growth of mobile phone usage and the rise of app development. It notes that in 2000 only 1 in 10 people owned a mobile phone, but by 2009 that number had grown to 6 in 10 people. It promotes two websites, ibuildapp.com and theappbuilder.com, for building mobile apps without technical skills. Finally, it lists several other online app builders that allow creating apps without coding knowledge.