I'm not sure how many people will be raving about this thing once they get it in their hands. The Z530 Atom is a craptastic CPU that was also in the Sony VAIO P, and you can read plenty of reviews that lambast its performance. The Z series Atom's are outdated and couldn't meet the Windows Premium WHQL certifications. The US15W chipset that accompanies them doesn't even do Aero fast enough so that Windows won't complain about the performance and recommend that you turn it off. The VAIO P shipped with Vista Basic for this very reason. The Z series Atoms should be avoided on anything except the most basic PDA-style device. It can't multitask worth a wet fart, and multimedia is a joke on it. Honestly, after using a few Z-series Atom systems with Windows Vista, XP, and even 7 (with and without themes turned on), I can confidently tell you upfront without even seeing it that this device won't hold a candle to the performance of the iPad. It's an apples-to-oranges comparison, I know, but the thing is, the iPad takes 23 seconds to boot from power off (I timed mine - a 16GB WiFi only). You can't say that about any Windows 7 netbook system with an Atom-Z. Not only that, but apps are fast to load up, even if you can't multitask on it. It's a simpler device than a computer, but not hugely less powerful.
I would rather see a tablet with Windows Embedded, designed for ARM. It's Windows, kinda, but it's designed for instant-on appliance-style applications. I don't think people are looking for x86 (read: desktop PC) complexity in this type of device. Desktop and laptop PC's are a different breed from devices like tablets and handhelds. Likewise, I'd hate to see Apple try to port iOS over to a conventional Mac.