I think there is very little evidence to suggest Apple is going to stop making computers anytime in the foreseeable future. And there's precious little evidence to suggest that they've eased up on the development of the Mac itself. They continue to develop the OS, they've introduced things like the App Store, and the MacBook Air is probably one of the crown jewels in their product portfolio.
Because of the incredible growth of the iPhone and iPad platforms a lot of Apple's accomplishments in the Mac line have gotten overshadowed, not only in the tech and popular press, but also in Apple's financial statements. But its also important to recognize that Apple has grown its Mac market faster than the overall PC market for something like 27 quarters now.
One of the problems the entire personal computer industry has faced is a certain stagnation that set in during the early to mid part of the 2000s. That sometime between the introduction of Windows XP and Windows 7, much of the computer industry simply focused on making cheaper and cheaper boxes.
Its interesting then, to see how Apple differed: They focused on their industrial design - everything from the gorgeous aluminum case, to the wireless keyboards and Touchpads, to the elegance of their power cables(!).
Amongst "old-school" Mac people there does seem to be some concern that Apple is "abandoning" the graphics and video professionals who used to make up a core market. I personally think this concern is overblown. The MacPro is still a workhorse - but its also worth considering that, on a dollar-for-dollar basis, it no longer holds the price/performance edge it once did. Apple tried to overcome this shortcoming by introducing a 64-bit version of its "professional" video-editing software - and reaped a whirlwind of criticism in return. Short-term Apple is seen as blowing the Final Cut X/Pro switchover. I think in 3 or four years people will be wondering why anyone is still fooling around with 32-bit editing systems. Apple - unlike Microsoft and a few other companies - seems to have the strength to make the painful decision to abandon legacy technologies once the way forward is apparent.
Virtually all of Apple's success over the past decade was built on the expertise, culture, and vision of the people who planned, designed, and built the company's computers. And I'd contrast that experience with that of a company like Samsung or HTC. These companies may have researchers working on video screen and telecommunications chips - but that's not what gets people to buy phones or tablets. Its the sort of "human interface" and elegant software and hardware design you get from making computers - and that only Apple presently does - that makes the difference.
The Mac ain't going anywhere.
