'Tic Tac Toe Classic' gives you a great game of Tic Tac Toe that also displays interesting and fun tips about the game which makes it even better and intriguing.
'Tic-Tac-Toe Classic' supports one-player and two-player gameplay modes. The one-player mode, has 3 levels of difficulty that you can choose from. The machine gameplay randomization engine should keep you guessing as to its next move and will help improve your game. The two-player mode supports playing against another person with you (as of now), which can be an excellent way to pass the time.
'Tic-Tac-Toe Classic' is designed to help you get right to the game, by allowing you to customize it greatly and prevent displaying 'nag-screens' for information ordinarily seen in most other games. The game also looks great on your Droid.
So stop reading, just install the game and have a great time playing and learning about it. :)