I can already think of many simple fun and useful app ideas using the paint basics of Android. If you enjoy designing software, give Google App Inventor a try. It helps you make to think.
I believe that anyone who can think logically can use Google App Inventor to build very simple prototypes to visualize an application. That includes product managers and product designers. Google App Inventor provides you with a a drag and drop interface to build simple yet powerful apps. It does take some perseverance. But it is doable. The logic for the paint program I created based on the App Inventor tutorial is below.
It is all drag and drop. I did not write any code.
|Google App Inventor Visual App Development Tool|