Here are 5 free promo codes for Big Bad Sudoku Book for the iPhone and iPad. As always please let us know which ones you took.. and ENJOY! 677A3XAXP7R3 TWYHAYPPLNEN RR9EWJ94EFMP 694MER4TPJRA J6NFA6LPY3WW If you missed one of these I'll probably do more over the weekend. By the way here are links to the other forum posts where I informally announce the game: http://forums.toucharcade.com/showthread.php?t=64678 http://forums.toucharcade.com/showthread.php?t=64679 -michael