In a post on the YoYo Games blog Sandy has written that a final release candidate of Game Maker 7 for Mac should be out in the next fortnight. After a week of testing it is then hoped that a final general release version will be made available by July.
Game Maker for Mac has been in development on and off for over two years with the first video showing progress released in February 2008 and testing commencing in November of the same year.
Awesome, we might get it just in time for Christmas :).
Yay!