It is unthinkable, but Apple's promotion of the iPhone/iPad platform makes clear that there are no "desktop operating systems" in its future.  After Panther, Tiger, Leopard, Snow Leopard, no more cats. It's tempting or natural to think that when Steve Jobs says 'we support two platforms - iOS and HTML5' that he is implicitly excluding the Macintosh — that the Mac(s) will continue in pretty much their same form. The rebranding from iPhone OS to iOS only makes clear that this really is Apple's next generation operating system for desktop-"form" machines as well as handhelds and probably the AppleTV. No design awards for OSX software. No mention of OSX or Macintosh in the WWDC keynote. Are all the point-and-click applications from OSX now dinosaurs?  Maybe not, but Apple is certainly encasing them in amber.  Consider the attack on mouseover in Steve Jobs's "Thoughts on Flash."  It was not so much that mouseovers were bad in some way - it's that they are the least 'touchable' part of the point-and-click interface.  How do you 'hover' with a finger?  Or with five fingers? Whatever Macs are announced this year are, I believe, going to be the last non-touch devices Apple sells.