OS X Tiger had point releases that were 10 and above. I believe the final release was 10.4.11, and everything was just fine.
Yes, but there is a huge difference in incrementing from 10.4.1 to 10.4.11 and trying to increment from 10.9 to 10.10. It simply doesn't work that way.
I mean is OS X really that much of a brand name that they can't move forward? I really don't think it is.
"OS X" has become Apple's brand name for their desktop operating system. In very much the same way "Windows", "Ubuntu", "Android" or "iOS". For whatever reason some people are still unable to see "OS X" as a name rather than just a version number.
Exactly. I remember hearing some time back that although Apple's computers are still called "Macs," the operating system is no longer called Macintosh. That being said, OSX has become the name of the operating system, I would imagine. As such, to me at least, the X has lost it ten-ness and has simply become a meaningless part of an acronym.
I think they'll go with either OSX 11 (incrementing from 10.9 to 11.0) or try to drop the X and go with OS11.