Go read my first quote that ask for proof people are dumping PCs to iPad only. All you have supplied is links to articles and studies trying to make head lines.
We already know they are dumping
netbooks, which are a "mobile PC", or at least something that was at one point considered "superior" or more "serious" than an iPad. You don't need any big headlines to see that tablets have killed netbooks.
As for people dumping full PCs (e.g., notebooks) to go iPad only, I honestly couldn't tell you, though we've heard rumblings in the news that the iPad has been eating into PC sales proper. In any case, the argument for inclusion of the iPad in regular PC sales numbers wasn't based on the iPad displacing PCs in the first place. It was (and still is) based on the line of reasoning that an iPad can do enough of what a PC can do for the average user, that its inclusion in "computer" sales numbers isn't that inappropriate.
You're asking for proof about an issue that will only crystallize in the future, possible a year or two from now. Tablets have already killed off netbooks, so what's the next victim? "Ultrabooks"?
I never said the the iPad is not extending the life of some PC or allowing people to dump the laptop for desktop only. I could even see it reducing the need for multiple computers in a house for some people but that still does not mean they belong in the same market.
I don't necessarily disagree.
But the lumping together is already happening. The question is whether it will spread and become the norm.
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What exactly is the difference?
Is an Ipad really anything but a big-screen Iphone without the voice cellular radio?
That's apparently all it takes. Amazing, isn't it?
Certain key things I can do with comfort on an iPad, I can't do with comfort on an iPhone. I can't explain it any better than that. It's just the way it is, and doubtless a lot of people feel the same way (hence, lumping in iPads with PCs in sales figures, but not smartphones.)
It also has a much larger screen, with apps designed to take advantage of it.
That alone is really the kicker.
There is a big difference between 4 inches and 10 inches.