If this is true then Sony and Microsoft just lost, especially
if this is
The screen when detached contains its own memory so developers can store data on it, so gamers can play whatever the developer designs for the screen-only use.
When the screen is attached to the controller it works by streaming content directly from the console
1. Meaning you can take the controller screen anywhere you go.
2. You don't have to be by a tv to play your games