Waiting for a crazy minecraft cat lady.
Cats seem kind of boring. All the most they do is kill chickens. But I guess you have to make the game appeal to everyone, and not everyone is a dog lover.
Cats aren't finished, they don't even have a "sit" state yet. There is no way, no matter how cats may act IRL, that Jeb and Jon would want a million cats teleporting to you every second.
Cats should be a "passive" pet where wolves are an "aggressive" pet, they should dig up things from the ground like bones and sticks, and should be able to catch their own food when injured and bring the extra pieces back to you.
Both cats and dogs should let you know if there's an enemy that has the ability to gain access to you. If you have your front door open and a creeper is at the bottom of the steps, they should make some sort of sound.