AndSudoku is a Sudoku clone for Android. The goal is to fill all fields with numbers from 1 to 9 in an order that every row and every column contains each of the numbers only once. Also every 3×3 SubBox may contain every number just once.
Discussion: http://www.anddev.org/andsudoku_-_sudoku_for_android_-_with_playable_demo-t2630.html