Ok, so they're a bit biased, but the link from 9-5 mac on how HP's forthcoming Windows 7 tablet video speaks for itself seems pretty accurate. I'm not sure how even the most hardcore windows fanboy can say that the browsing and UI is "fast" or "easy to use" compared to the browser on the iPad. I'm not sure if it's the fault of the OS or the touchscreen or the computer hardware, but it really looks like you have to be pretty "purposeful" in your screen touches and swipes, instead of the more easy going screen touching on iOS devices.

Marco.org has some notes about some stand out parts of the video.