I think it's still relevant, because Apple has historically had great mindshare amongst thought leaders — now that it appears to have lost it, it's only a matter of time before it starts to lose mindshare amongst normal folks.

A non-technical acquaintance who occasionally asks me for computer help recently switched from Android to iOS (at the behest of her daughter, indicating Apple's continuing mindshare amongst at least one segment), and she utterly hates it compared to Android. From what I can tell, it's not solely because of the pain of changing — it's also that iOS simply isn't as pleasant to use. And that says something, given that she was using a fairly terrible vendor Android previously.

That's just one anecdote, but I wonder how many others there are. How many vi-users will seriously consider switching to Windows or Linux? How many power users will have to switch to Windows or Linux just for more RAM? At what point do people who used to be proud Apple fanatics become sheepish, and at what point do sheepish Apple users just switch to something else already?