"OS 11" may be too far off to worry about
I think "OS 11" is probably so far off it's kind of pointless to speculate about it. So far they've basically done one "point release" per year, but they've slowed recently:
- 10.0 (Cheeta): March 21, 2001
- 10.1 (Puma): September 25, 2001
- 10.2 (Jaguar): August 24 2002
- 10.3 (Panther): October 24, 2003
- 10.4 (Tiger): April 29, 2005
- 10.5 (Leopard): "Spring" 2007
(Source: Mac OS X, Wikipedia)
Also, I believe Jobs has publicly said they are slowing down the release schedules.
Even if they only release once every two years, we'd have:
- 10.6: 2009
- 10.7: 2011
- 10.8: 2013
- 10.9: 2015
- 11: 2017?
That's assuming that the schedule never changes, and also that they go all the way to 10.9. They could go from 10.5 to 11 if they wanted. Of course, they
could go 10.10, 10.11 since these are version numbers and not "proper" numbers.
Since they're probably planning on milking the OS X name, the earliest probable years they would change would be 2015-2017.
Technology is going to change so much between now and ten years from now! Look at what we had ten years ago: for Mac users, Mac OS 8 had just come out. For Windows users, Windows 98 was out the next year, with everyone using Windows 95. Think of the difference between Windows 98 and Vista, and OS 8 and OS 10.5. That's how big of a change it should be to OS 11 from now.
Who knows what kinds of interfaces we'll even be using. Multitouch? Will speech-to-text come fully into fruition? Will everything be on a network that can be accessed from everywhere? Will we even have desktops and notebooks, or will we get things done on iPhone like devices.
I don't mean to sound like the guy promising $10 laser-equipped, nuclear-powered hovercrafts for everyone, but I think it's pretty obvious "OS 11" will have a new interface, because the way we interact with our computers will change drastically.
So what I mean is, even calling it "OS 11" is too much thought for right now. We don't know what technology will really be like ten years from now. We may not even be concerned with an "OS" at all. So the (lighthearted) debate over what "OS 11" will be called is moot to me.
(Also there are plenty of other options: Maybe Apple will go the Microsoft way and release their operating systems with "names" instead of numbers. Ten years ago they'd be talking about what Windows 2007 would be like, little did they know it would be called Vista. Or they might, like I said, keep going: 10.10, 10.11...)