Peter Bright makes an interesting case:

It turns out that tablets aren't the new smartphone and they're not going to provide regular sales at high price points. They're the new PC; if you've already got one, there's not much reason to buy a new one. Their makers are all out of ideas and they can't make them better. They can only make them cheaper.

That’s a bold thing to say when we are less than a couple of months removed from a new generation of iPads. We shall see.