Since I worked for a german automotive brand as an interaction designer for 7 years and left with good reasons - having learned that the three pointed star (my ex-employer) and bmw now are turning to using unity as a foundation for the ui layer - how stable is that choice?
A company I have a friend at built their mobile app in Unity. It has no 3D or 2D "game" in the traditional sense. It's all just UI screens. But it's all Unity UI.
Apparently it has some non-native feel issues, but it works better than you'd expect. They had a bunch of custom UI components for recycling views and stuff too.
