I feel PC growth will grow till tablet's start offer the same computational capabilities as that of PC. Tablet's is more user friendly for web browsing and email checking, not sure if we can run high end computational intensive tasks on tablets.
PC and tablet will still grow, there might be possible that the early users of tablets will drive the yoy growth of tablet but i expect it to saturate. I also expect that PC will have a higher share that tablet just because of the multi-functionality nature and broad scope.
A tablet is a display surface with computing power behind it and user inputs. Is that a PC? Maybe. Is it a TV? Arguably, yes. The lines are becoming very blurry these days. I don't know that many of these will have a Microsoft OS, much less a heavy application suite like Office. This must be driving the analysts nuts, since they are trying to linearly predict a nonlinear future.
I too agree that the predictions are very debatable, but for a different reason.
I think that the forecast for tablets market share in 2014 is hyped-up more than it deserves to be. In my view, after the early tech-adopters interest settles down, the tablet market would settle to somewhere between 10%-15% of overall PC market.
Ofcourse, I am assuming a disruptive technology based on tablets doesn't emerge by 2014!
If a Tablet, with close to PC functionality, is priced at the range of a netbook, more people will be benefit from it. Some of the students in developing countries will be able to use a PC to improve learning experience. The growth of Tablet may be high than expected, would it?