Even the original post talks about RT and Atom. So it isn't exactly off topic. If you really want a tablet, I would stick with Atom. It will be cooler, fanless, lighter weight with long battery life.
Once you start looking at 2lb tablets with short battery life, fans and heat production, your really trying too hard to have everything in one package and end up with a very awkward tablet, and kind of awkward laptop with a small screen.
If you want that kind of performance, something like a Lenovo Yoga 13 is likely a lot better as a laptop. It has a bigger screen and better laptop ergonomics. Sure it is even heavier as a tablet, but once you get to 2lbs with any of the Ivy based machines, your really have a desk/table tablet anyway.
I think these will be the sweets spots.
Tablet first designs:
Atom Tablet: Usable "hold in your hands" tablets, long battery life, cool running, light weight (under 1.5lbs). External or detachable keyboard. Potentially awkward in "laptop mode" but reasonably good tablet experience.
Laptop first designs:
Convertible Laptops. Powerful CPU, non-detachable screens gives better laptop ergonomics, with desktop/table touch tablet usage. But too heavy for "hold in your hands" tablet.
Attempts to create the Tablet first design, using the more powerful hardware ends up compromised at everything, too big, hot and heavy for general tablet use and compromised ergonomics in laptop mode.
I have a tablet. I need a (real) pen-enabled device with x86 (actually x64), 8GB, 1080P (or more) i5 and and as thin and light as possible. If the Yoga had an active pen, I'd take it, despite the 900P res. I need a professional / business-use device, a market that almost no one has addressed with launch W8 devices.