One of our local retired developers got hooked on Sudoku, and like most of us geeks out there decided it was too mind numbing not to write some code for... and created a Sudoku application for himself and his wife ...
http://www.wordpower.orcon.net.nz/mario'sudoku.html
It's still very alpha - but quite useable. Feel free to take a look and let the developer know what you think..
You can download the Mac version for free at : http://www.macupdate.com/info.php/id/22067
http://www.versiontracker.com/dyn/moreinfo/macosx/30201 http://mac.softpedia.com/progClean/mari-sudoku-Clean-21123.html
the Windows version at: http://www.versiontracker.com/dyn/moreinfo/win/65656
Alternatively you can get them both on my website: http://www.wordpower.orcon.net.nz/
If you download from MacUpdate or Versiontracker or softpedia please take the time to write a review (just a few words) to tell me what you like/don't like or goes well/not so well.
As mario's sudoku is only alpha.0.0.3 at this time you can help to make it better and easier to use.