I don't own one, but would be a nice toy to try around.
I personally am not a fan of anything mobile, as I am very used to a wide noise making keyboard, with a mouse in my hand. Not to mention that I am a fan of big widescreens, using a 22'' Phillips.
Last but not least, I like to be able to upgrade parts, something I often do on my desktop systems on myself. Sadly usually mobile toys don't offer that ability.
Will not buy one anytime soon, as I would have no use of it, but I'd definitely be happy if I got one

to play around with.