As tablet hardware and software becomes more capable, I would expect to see PC hardware sales drop. There may never be a perfect convergence where, for example, it's possible to develop tablet software on a tablet. But as the use cases increase particularly for content creation, less people need the capability of a full PC.
I suggest keeping an eye on the Atom-based Windows 8 tablets. These tablets run full Windows 8, with the ability to run Win32 apps, not just Windows RT. I haven't tried to run Visual Studio on such a tablet yet, but it seems feasible.
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As tablet hardware and software becomes more capable, I would expect to see PC hardware sales drop. There may never be a perfect convergence where, for example, it's possible to develop tablet software on a tablet. But as the use cases increase particularly for content creation, less people need the capability of a full PC.
I suggest keeping an eye on the Atom-based Windows 8 tablets. These tablets run full Windows 8, with the ability to run Win32 apps, not just Windows RT. I haven't tried to run Visual Studio on such a tablet yet, but it seems feasible.