I go back and forth on these mini laptops. It is definitely cool. It definitely won't fit in my pocket, but will take up little, or no, more space in my bag than my z + accessories. Maybe this +smartphone is a solution? But then laptop +smartphone has been the typical approach in the US.
What it boils down to is whether to compare this to a zaurus or a larger small laptop. Pricewise (it said something like starting at $750) it is more reasonable than other big small devices, and only mrginally higher than a basic laptop.
Today, I like my Z and wouldn't trade it for something not pocketable. tomorrow maybe I'll want a standard x86 distro and leave the embedded porting issues behind...