Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
To lure more players from Japan and Asia. Introducing Mah Jong is a great idea I suppose. It is somewhat Asian counterpart to poker but with dice-like pieces with wide variety of scoring methods.
MadMonkey: There are zillions of freely distributable games that include Mah-Jong based games. I'd be surprised if none of them had a license that forbid using just the graphics.
For instance, the fanclub version of pysol includes Mah-Jong graphics, which are distributed under the GNU license. This means that Fencer can freely use them - the license would only mandate Fencer to do something if he was going to distribute the code of BK.