Just looking at his setup gave me back pain. I mean, why settle for a small tablet screen with a separate keyboard when you can have several huge screens giving you so much more screen space? What is the point there?
Of course a portable device is great to use when I'm away from my desk, but that's the exception not the rule.
I quite agree with Derbasti; my dream device would be a tablet that I can dock at my desk and have it transformed into a full blown workstation. Even better, make it a phone with a large-ish screen.