Amazon Digital Services have launched a two-player Tic Tac Toe (Naughts and Crosses) game for the Amazon Kindle e-book reader. This edition has 16 different games where you play against the Kindle (Computer), each game having a vired difficulty. Some games are easy to beat, some hard, and some are impossible. On some games the Kindle makes the first move, the other games you get to move first.
To play, you use the Kindle's controller to pick an empty square on the board to make your mark. The Kindle then takes its turn. Since the moves are pre-computed it would not be very difficult to beat it. The game is currently available for USD 1. The users can directly download the game (536 KB Size) on to their Kindles using the Amazon Whispernet wireless delivery, after making the payment. Jon has written a detailed review about the Tic-Tac-Toe kindle game where he details all the working of the code and stuff.