For years now I've held out for a real game of Mahjong, or better known as "Ma-Jiang" in China, where the game is supposed to be from.
Instead, every few month we get a new flavor, an exact copy if you will, of the Activision game from the Apple II days, Shanghai. Just like Egg Fu Yong, this dish does not relate to the actual Chinese people, but rather, is a complete concoction of the west. Although this page would have you believe differently. http://home.halden.net/vkp/vkp/origin.html
However, this in no way makes the Activision game Shanghai a variation, or even an offshoot of the actual game MaJiang/Mahjongg. The two just play like day and night. In fact for a Mac "Mahjongg" game to outstage all others, the programmer need not go further than to the source.
So here's the question: who's going to take the initiative?