Apparently (?), SIE filed a patent for a Switch-like device with detachable controllers in 2015

[SonytendoAmiibo]

d21lewis said:

BraLoD said:

And the triangle button!

SOLD! Can't wait to get my hands on a PlayStation Swap.

 

It has begun. The portable home console wars. The Sony Swap with its removable Shock-Con controllers will play PS4 games from cartridges.