Gadzooku is here. Sudoku puzzles for pet lovers. Nine animals are used in place of the traditional #'s 1 - 9. Four Levels of difficulty. Simple to play, hard to stop playing!
http://www.gadzoo.com/GadzookuHome.aspx
For those who use Facebook, the Gadzooku application is available now. Keeps user stats, challenge a friend or try to climb the top-10 leaderboard
http://www.facebook.com/apps/application.php?id=11330311663