6 Years ago I worked with an organization called Openworld and we were concerned with helping people in places like rural Africa and Asia gain access to relatively inexpensive mobile tech tools which help actualize human potential.
Now it is possible to access almost all human knowledge with a few taps on an iPod. Entire curricula can be accessed by isolated schools in the bush. People with the general aptitude can lean advanced mathematics in places where there is no running water. Schematics for motorcycles can be downloaded, same for water pumps. We are just seeing the beginning of this thing.
Mobile tech is as important as the printing press was when it emerged for a large part of the human family. It may be even more important.