Sony has got a patent on the obvious idea that a computer system (specifically, a game console) might use a camera to recognize all users, so no one needs to explicitly log in.

This patent would give Sony a basis to sue any other company that implements this idea. It does not necessarily mean that Sony itself will implement this idea, or even that it knows how to implement it reliably, but perhaps it will.

Would you want every Sony-made game console to be able to recognize you using biometrics? I would not.

On the other hand, given a game console powered by free software, I might be willing to give my friend's console some biometrics to recognize me by. But I'd want to be sure that they wouldn't be usable for recognizing me when I pass by a camera in the street, and that might be difficult to implement.