Interestingly, in the poll at the bottom of the article, 40% of 3800 people said they don't think tablets are here to stay. A lot higher than you would expect.

Personally I think they are here to stay, although I think their value is a bit exagerated. I used an iPad for a few weeks and I really liked it, but I didn't do anything I don't usually do on my smartphone. Doesn't mean I wouldn't buy one though...