I don't know if it would work as a client based MMO, really. I mean, there are loads of other farming based browser games out there with a playerbase of 500k people. I think it would be bloody boring to look at your screen all day and watching those vetgetables grow. On facebook and others you can come back once in a while. Ofcourse, with client based you can also play windowed if you like, but I don't think it's going to have that much attraction. Besides, almost 60% of the games have a crafting skill which allows you to farm whenever you feel like it. I might be pesimistic, but again, I don't think it will work out that great.
