How many? No set figure, probably 2-5, something like that, depends on the quality of the applications.
Cool. This sounds like a pretty sweet gig so I'll definitely give a shot at an application.
Predictions for global hardware sales by end of 2017: PS4 - 70M. Xbone - 33M. Switch - 7M.
"There is a need for parents to touch children first." - Tatsumi Kimishima, 2017