It is gonna confusing and annoying, espescially since some versions will have stuff the other versions won't if what I hear is correct.
I can't really complain 'tho - Linux Distro's are far worse

My great hope is that the Windows API is forced open and then people can write clones of Windows in the same way we had clones of DOS!
That would rock.
WINE might actually be usable for games!
ReactOS might actually come in to existance before I die!
But also Apple might take over the world (If a Mac would run Windows apps, a huge number of people could switch... and Apple would be far *far* worse than Microsoft if they held the monopolising position that Microsoft hold now...)