Checked it out the other day and this really is fun. Having NEVER liked Baseball or Baseball games in the past I wasn't expecting much but it has a nice arcade feel to it, assumes you know very little about the sport and controls well enough to make it nice and intuitive... I was pleasantly surprised. It's not going to set the world alight but the controls are good, the "special moves" fun to watch (although I wish it had replays for em!) and the graphics are ok.
Definitely worth checking out.