Here is what I'm seeing and just my opinion. There are posts on top of posts on top of posts on how to make peoples' workflow work on the iPad. So many discoveries and ways to "trick" it into doing what you need and so many people changing their work flows to just make it work. That in of itself speaks volumes around why an iPad is not a laptop replacement. When I get a laptop or desktop, do you know what i have to do to make it work? Nothing, I just work and not spend so much time figuring ways to change my entire life to work around a device. Rather I change the device to work around my life and business.
That said, I think the reason there is this desperate need for it, is because it's ultrafast, turns on immediately, doesn't overheat, battery lasts forever, small, feels like you can just throw it around, and screen is just gorgeous with its 120hz and insane color reproduction accuracy. I mean, even I did sooo much to try to make it work for me. In the end, it just felt "uncomfortable". Can't explain it..I think something to do with having many windows open at once and having full-screen context switching is difficult.
I think Apple realizes this, especially if they pushed iPads as being computers internally.. and that's why the ARM-based mac is a HUGE welcome. Basically a mac, with ALL the benefits of the iPad: Faster, better battery life instant on no matter what. In my opinion ZERO compromises, ZERO change in workflow but absolutely perfectness (that's a word??)
Basically BLISS.. I can't wait.