for this large form factor, I'd rather just get a nice sub-notebook.
If they had this thing running OSX i'd consider it (or at least Linux for gad's sakes). The fact that it runs windows makes it utterly useless for me (I'm in the design industry so its mostly macs around here). Though for quite many, the fact that it runs windows must be a big plus.

BTW, What exactly is the difference between this thing and a tablet PC? is it just the size?

like all windows products I hope this thing sinks like a brick in a tub full of helium.