Today is the 11th, and it arrived today! So far, I haven't done too much with it. It doesn't seem all that great, but maybe I am just not getting into it yet. There are no real stats to keep up. You just earn hearts by playing with it. There are three games to play - card matching, bowling and guess the right flower that it is hiding under after they are all switched around. Then there are three nurturing nodules where it gets a grooming, bottle or bath or something like that.
At least that is my take on it, at this point. The games probably change when it evolves into the next stage. I played it about 20 minutes, total, maybe, and got one heart.