The WeiPhone dev team has released their version of Sudoku. Use http://app.weiphone.com/installer/ as a source in Installer. Parts of the menu are in Chinese but are easily deciphered. The top left gray button below the counter, starts and stops the timer. The gray button to the right of that, turns the counter display on or off. The left green button solves the puzzle and the right green button resets the timer. Numbers are inputted by selecting an empty square with a numbered pad appearing thereafter.

Thanks to http://www.iphoneskinning.com for the entire news.

http://www.iphoneskinning.com/2008/04/sudoku-v10.html