I still can't run any of the CAD software I use on on any Mac OS's. Rhino3D 5.0 is actually in Beta form and FREE to use for Mac's but it is buggy, and McNeel isn't even thinking about releasing 5.0 this year for P.C's, Mac's will be another two years away. Pepakura (a program used for modeling paper craft) does not work on any Mac system. Mac's cannot open .PDO files natively.
My Silhouette Cameo paper cutting machine works with Mac's but since none of the design software that the bulk of people into the hobby use, even at $29 dollars, and the fact you cannot install OSX in a computer that isn't built by Apple, I don't think it should be considered an operating system really, it should be though of as Apple's Center for Controlling Computers and People .
If they do ever allow it to be installed on a machine other than one they have made, I would definitely give it a try again. It takes too much time for me to go between two different computers, and why bother when I have three that can all run everything I need?
Is it a surprise at any given moment that a Windows based computer OS is the most popular? I think W7Pro is great. It's no surprise to me.