OpenSudoku is a simple open source Sudoku game. It’s designed to be controlled both by finger and keyboard. It’s preloaded with 90 puzzles in 3 difficulty levels, more puzzles can be downloaded from the web and it also allows you to enter your own puzzles.

Changes:

French translation (thanks to pierre.hanselmann)
Chinese translation (thanks to Xue Kai)
Czech translation
Fixes issue #22 – A Wrong number in last open field leads to a successful solved Sudoku

http://code.google.com/p/opensudoku-android/