Social Sudoku

Social Sudoku is a free Sudoku Android game. Social Sudoku currently comes with 9 puzzles. The puzzles come in three different difficulty levels: Easy, Medium, and Hard. Social Sudoku has the ability to save your current game progress so that you can come back later to finish the puzzle. This game is currently under development, and is being offered as is for free. This is your chance to help me make the best Sudoku game on the Android Market for you. I would appreciate feedback on things that should be changed, or things that should be added to the game.