A 4.8" screen means the screen alone is as big as a N810! Then add in the side panels festooned with buttons - another inch each? - and you have a fairly chunky and definately not pocket friendly device.

It's unlikely to be using the as yet unavailable low power Intel x86 chips, so will almost certainly have to pack a large (and heavy) battery to get anything near a reasonable uptime.

The super high resolution screen is nice, but such a resolution is essential when using Windows because Windows applications are no longer designed with lower resolution desktop screens in mind. A small-screen optimised OS wouldn't need such a beast. Small text could become an issue on such a small and high dpi screen, particularly when running applications where the target audience is expected to have big desktop screens - I'm sure Windows will try to scale the fonts but they could still end up unreadable.

Price - almost certainly expensive, nudging $1000 or more I bet.

It will be interesting to see how it fares but it looks like it's just another UMPC, which is a form factor that should have died a death a long time ago - this is probably (hopefully) it's last breath. MID will become the new UMPC.