I understand how people can think this, seeing how the Mac Pro lacks a compelling update, but Apple seems to have its own mercurial schedule these days. Just when you think they've forgotten or ignored something, BAM!, they announce a big change.
Still to come is a new iTunes and improved store discovery. Neither of these are small things.
And iOS still has many strong apps Android doesn't. The real challenge will be what happens when Windows 8 tablets start showing up and devs create for it.
It also seems like there have been more stories lately that portray Microsoft and its products in a more positive light....
That said, the thing that really nails it for me, and I suspect many others (putting aside development reasons), is the integrated experience. I love the fact that my iPad, iPhone, and Mac work with each other, etc... And once you're in that type of environment, and you have money invested in Apps, etc.. its incredibly difficult to want to move away especially when the experience is great (we can argue the semantics of what constitute as great but lets keep it simple and say good enough for most people).
The move from Windows to Mac was not a difficult one (at least for me). There was no integrated environment and as far as software, new software releases come out all the time so an upgrade or new purchase was going to happen sooner or later. I suspect that a lot of adopters that will be adopting Windows 8 will most likely be existing Window users. They will still dominate the shares in volume but I suspect new Apps on Windows at this point will be a challenge getting Mac users to switch off.
The people who are leaving are technology hipsters. They want to use the things that haven't become popular, that are unappreciated. Apple's too mainstream to be cool for people like that. They want problems to solve, things to fiddle with, not finished products that anyone can use. They want challenges and bragging rights for getting it to work.
It's not a case of elitism as easy as that would be to see. It's just that Apple's platform is, as far as hackers go, quite "done" and there's not much untamed land to occupy. The rugged frontier is far beyond iOS and OS X.
I'm sure a few of these people are working on a Raspberry Pi phone.
It seems that Apple has one of the lowest % of unhappy users, and that means it will not decline, but thrive...because they care about the experience so much.
When it comes to iOS, I don't think iOS or the Apple ecosystem will be the dominant ecosystem. Their products are simply too expensive for the majority of the world to afford, plus I think a merger between tablet and computer OS like Win 8 is the future of computing. However, It think they will continue to dominate the high end tech field, which has way better profit margins.
If it's old and tired in Oakland, its still new and shiny in Oakbrook. :-)