A major theme in our State of the Developer Nation reports is an increasingly gloomy picture of typical developer revenues. The vast majority of developers make very little money from their apps. However, there are a lot of developers out there and a decent fraction of them make a good living, some are building thriving businesses on the app stores and a few at the top are even creating multi-billion dollar companies. So, what’s different about the developers that are succeeding financially versus those that are living in app poverty?