You really can’t keep a game like this penned up forever. At some point you’ve got to start getting it out there and actually let other people play it.

So we’ve taken the first steps on that path in the XBLIG world: the game is in playtest. So if you have an App Hub account, and you’d like to help us out with some feedback, we would greatly appreciate it!

http://xboxforums.create.msdn.com/forums/t/108910.aspx