So it turns out the PS4 does have software authentication...

[DonFerrari]

wilco said:

DonFerrari said:

How can you say d-pad on x360 is better than on ds3 when it seems you largely just play with x360 controller?

About player identification it regards side of the screen. With eye and ds4 if you and you friend change place on the couch the position you play will change.

Did not say it was better, just not any less reliable. I own a ps3 and I have used the DS3 before. The d-pad was good but my post 2010 360 d-pad worked just as well. I've also used the DS4 long enough to know that the d-pad is basically the same as the DS3. 

Any feature of the DS4 that requires the eye to work is almost not even worth talking about. The eye is less relevant than the kinect and thats saying something.

Ok for not less reliable you are just talking about breaking and input fail or easyness of use and usage on genres where it had problems before 2010?

So from ds3 being enough to identify player (same for Wii and x360, using small leds, x360 is actually easier and more visible) and after explaining you just disregard because of eye... This don't need special coding from devs, it is as usefull (or irrelevant if you preffer) as xbox os voice commands (which work through mic on ps4). Haven't saw much x1 fans saying how useless voice commands were, have you?