Trying to break the game...
You did an excellent job of making sure that you have all angles covered in terms of people trying to break the game. I literally test played the game several times to try and break it so I could make you aware of it, but I'm really impressed Adam.
I was unaware though that AI had not been implemented which for this game shouldn't be too hard for you. Again the main complaint with everyone is that it's just weird to play by yourself, but I think what they really mean is that since they aren't able to play against their friends on another computer and have to have someone physically beside them, the chances of that happening is slim.
All in all it's a fun game that seems very well thought out. I really like the card system, which can turn a winning streak around, but the implementation of AI would bring the review scores up substantially.
Keep making great games.