I think this guy got off the rails. The tablet is going to kill the notebook/netbook market which is what most consumers buy.
Killing the PC will take a long time in corporate environments except maybe in the C level where all they need is email and document/presentation software and web apps.
It will still be served to them from Linux/BSD and even some Windows boxes.
I have to disagree with you on the business market front. Most companies(excluding some obvious examples) use PC's/Netbooks only for doing basic data-entry and specialized enterprise software that usually runs of a browser anyway. Tablets when priced correctly will offer a significantly lower TCO to these companies compared to traditional PCs. Google, tried(unsuccessfully) with the Chromebook to tap into this sentiment, though I think their overall vision was right. If we are going to live with data on servers or cloud, why need a full blown PC. Its the pricing that is the current challenge to all vendors. Once, cheap tablet options come companies will realize that their TCO's will be significantly lowered by adopting these devices.
Killing the PC will take a long time in corporate environments except maybe in the C level where all they need is email and document/presentation software and web apps.
It will still be served to them from Linux/BSD and even some Windows boxes.