It is a really well made and pretty game, with couple of flaws which I believe are result of this being just a demo. I would not keep the version with only joystick controls as different download, as I did not realize and got the wrong version first (I know it is all well titled and such, but it is much easier to miss it than it may seem). I also think information of how controls work plus mini main menu would be a good addition to the demo version rather than just throwing you in game.
Do you have a release date for final version in mind?