Umm, why are you impressed? No, that's a serious question and not a fanboy one. What does this device do that an equivalent laptop doesn't do better, faster and cheaper and, frankly, with a better end user experience?
Outside of certain niche markets (i.e. where tablet PC's have been selling to date anyway) you'd have to be certifiable to buy this. It's underpowered for a Windows 7 machine, you need to somehow use a device the size and weight of an iPad but with a stylus rather than your hand and that makes a big difference to ergonomics, the OS is terrible for touch input, there are kludge solutions all over the place and all that lovely existing software is designed around keyboard and mouse so the BEST you're going to manage is using the on-screen keyboard then reaching down, grabbing the stylus from wherever you put it (there's no dock on the tablet from what I've read), tapping a control too small to accurately touch with a finger, putting the stylus down again and carrying on.
Speaking as someone who's used Windows tablets for over 5 years now this is going to be terrible as a home / consumer device and bring very little to business other than in certain areas like point of sale, survey filling etc. Now if it were running webOS or, for that matter, a tablet version of WP7 that'd be a different story.
