Ever since the first iPad there have been cases that have added a keyboard. But, I don't think that most people that have an iPad have an external keyboard for it. So this may be evidence that some people want a small laptop with a simple OS.
But given that Apple has sold more than 60 million iPads without keyboards makes me think that the current design is working just fine for most people.
Well, one might have reached the same conclusion about the millions upon millions of shitty cell phones that were sold right up through 2005. Cell phones with abysmal UIs, retarded ergnomics, and no working sync software.
Sales figures don't prove something is good (or bad).
But given that Apple has sold more than 60 million iPads without keyboards makes me think that the current design is working just fine for most people.