This image was taken from matwrites.com
As i always start this is the wikipedia definition for it:
Flutter is an open-source mobile application development SDK created by Google. It is used to develop applications for Android and iOS, as well as being the primary method of creating applications for Google Fuchsia.
Ok but some can say what in the hell is Fuchsia i will left this link just for you my friends 
Ok let talk a little more about Flutter.
1.- I have been used and on the market for a couple of year now but its still in beta, this does not mean that it can’t be use or it have problems to be used in production.
2.- Flutter uses Dart to work behind (I will let you to look that one on your own).
3.- You can build 2D mobile Apps in Android and iOS.
4.- You can build full-featured apps with Flutter, including camera, geolocation, network, storage, 3rd-party SDKs, and more.
5.- No prior mobile experience it’s require.
You can read a few more over the internet and watch some video about people already using it. But then what it that have Flutter that make it so special this is because uses neither WebView nor the OEM widgets that shipped with the device. Instead, Flutter uses its own high-performance rendering engine to draw widgets.
This is the list of a few apps already created in Flutter:
- Alibaba
- Topline
- Google AdWords
- AppTree
Here you can find the Flutter showcase https://flutter.io/showcase/
Ok that will be all for today next time i will show you how two install or where do we get step by step how to install it and we will see some code i will be using github so you can get the code and play with it, see you soon!
Now go and code around!