This Holmes interview with Mew-Genics' Tommy Refenes at its first public showing explains every reason I badly want this game.
Cat animations based on personality sound great. I am already laughing at the mental image of, "dumb cats just fall on the ground." And the notion that you can accidentally condition a cat to be a jerk is great. As Holmes says, there are just so many variables at play with different cat types, AI, and whatnot. I am so excited.
Oh, and there was a bug where the dad cat would try and mate with the kittens as soon as they plopped out. Calm down there, Zeus.