Hummingbird – revolution in cross platform application development
Flutter
You probably have heard about Flutter, cross-platform development framework. With
Flutter is pretty responsive framework with really good written documentation, and huge community. Framework seems to be pretty stable since version 1, you can read on the web about looong beta testing. From my experience, even during beta testing, Flutter was pretty much stable.
Dart
Apps are written in Dart language, most of the developers will be familiar with OOP principle, and as I mentioned before, everything is pretty well documented. Flutter’s engine is written in C++ and it interfaces with platform-specific SDKs.

Hummingbird
I personally think that this approach will finally end the war between developers. Imagine only one code, maintenance and testing process for both Android, iOS and Web (and probably much more).
From
Probably there will be some limitations in