I'm writing this post on a three-year old laptop even though I could be using a tablet. Why? The screen is larger, so I don't need to squint to read. The keyboard is hefty and responsive. It's really light (the carbon fibre construction is actually lighter than my iPad). It has HDMI and USB and earbud ports. It's more powerful than a tablet, and runs productivity software as well development environments. but it cost less. It doesn't require special 'apps'. Donald Clark points to all this in his post. Of course, my laptop is an ideaPad, which means it can become a tablet if I want. It has six hours of battery life, which makes it OK for airplane use (my next laptop will have more). The touch-sensitive screen means I can draw on it (I need to learn how, though). So the point here isn't that tablets are bad - it's that the way they were designed and marketed was bad. Apple could have designed a teriffic tool, but it had other priorities.