This android app was mentioned in
with an average of
There already is a Katamari idle game for mobile. [link]
Hopefully this will be a new entry in the "core" katamari series.
Not for the PS4, but the creator is making a new game for that console that looks just as trippy.
Also made a mobile game:
These days your best bet is either through PSN on the PS3, or a PC emulator.