Such a device will likely appeal to corporate users. And many corporate sites use highly-secure networks (we use Cisco FAST EAP) which may or may not be supported in OS X. So you'd need a physical connection via RJ-45.
And a 12-13" display is not the easiest thing to read day-in and day-out, so the ability to use a larger external display would be desirable.
Can you access this corporate site over an iPhone? I can't imagine anyone using a sub-notebook has this as their everyday computer.
You're mixing this product with a regular laptop. Think something like the iPhone with more interfacing.