First, it was almost to be Pistachio from a leaked CSR conversation but Google has the official name on it
Thru their official blog post, they named Android P as Android 9.0 Pie
Like what they mentioned at the recent Google I/O 2018, expect these key things:
Adaptive Battery - learns the apps that you use frequently and prioritizing battery for longer usage
Adaptive Brightness - learns on how to set the brightness depending on your liking and surroundings
App Actions - predicts your possible next move on your favorite apps
There is also a feature named Slices which will will show important information with a small window depending on your app that you are using and will initiate by searching it via "Hello Google"
The most noticeable that you will gonna see in the display is the new system navigation with a single home button. Android 9.0 will start to roll out to Pixel phones as well as selected devices from Sony, Xiaomi, Nokia, OPPO, Vivo, OnePlus and Essential
Via 1