I got one. Thoughts
It's well built, starts quickly and is very responsive. However, compared to the iPad, it really is a bit too big and heavy, IMHO, for armchair browsing. The screen is very nice; the device seems to run Photoshop and Lightroom ok. It just about squeeses into the tablet compartment of my camera bag.
The keyboard feels pretty cheap and nasty, but I don't care as I only paid twenty quid for it (thank you PC World). That said, I'm finding it superb for touch typing, and the backlighting is useful.