It's ok, not perfect. But it does its job. There are some things that I don't like about the gameplay. Sometimes you hit the stone and it won't be selected. This is a bit annoying.
I think it shouldn't be any problem after the first tutorials. My first android app I developed was pretty much the same although it was a menu for a restaurant. :)
What kind of finance programs are you looking for? I have a couple of Android Apps ready but this market is pretty huge and diverse so maybe you could specify a bit.
As far as I know there's not a lot you can do to be honest. But that's just my own experience. Maybe somebody else can help you get your android app accepted faster.