I played the first two levels of the demo but I found it to become annoying and quit. Herding was too hard for me because the controls didn't exactly do what I wanted them to, so there were plenty of sheep plummeting to their dooms. Who herds sheep on mile-high islands, anyway?
It's still a pretty cute game, though. I think, maybe it's part of the challenge that you don't get to decide where the sheep are going, but still, this is not a game for me,