Quote - from what I heard, vista is a copy of mac os 10.2 and 10.3, but to get all the features, ya gotta spend $400 u.s.

 

Although Vista isn't based on the Mac OS, many people think that the GUI has been "ripped off" from it. From what I remember, Apple was the first to use the icon style GUI anyway. This is the same as the argument saying that the iphone design is "ripping off" the LG "Prada" phone.
As new technologies emerge, and new ways of working become the norm, there are bound to be overlaps in design and function. There are still significant differences between them.
PC's will probably still be hacker friendly, and Mac's will still be overpriced and a pain to upgrade yourself.

Daz Studio 4.8 and 4.9beta, Blender 2.78, Sketchup, Poser Pro 2014 Game Dev SR5 on Windows 8 Pro x64. Poser Display Units are inches