It looks cute. But that's not an original idea. For a long time they've been trying to create computer like those, but it never got too popular. I personally think that it's still expensive and not flexible. And Windows on it seriously won't reduce the price unless MS supports it for free.... but when MS supports it for free, I bet my X that the hell will turn into a frozen cookie.
Second hand monitor = 30/50 bucks, Second hand PC = 100 bucks. Heck, I've even seen laptops cheaper than that over here:
seriously man, the above is about 225 USD... the page is in swedish, but the specifications are quite clear.