Yes, there is something at least close to a philosophy of cats. Perhaps even a new Area of Competence. (Graduate students going on the market: such an AOC would make your cv stand out for sure. Maybe not in a good way, though.)
Here it is:
Here’s the link. Just in case clicking on the pic doesn’t work.
There’s also some suggestion that cats can make you a better philosopher.
Thanks to Calypso for the alert.