Quote: "How's the screen look?"
On this one, pretty good. About the same as the 11-inch MacBook Air, although I haven't looked side-by-side, so I don't know if the colors would hold up.
It is the main reason I picked this one over the HP Chromebook 14, which stretches this same resolution (1366x768) over a few extra inches on a less-bright, lower-quality panel (but does have considerably smoother performance, which I suspect is due to poor ARM optimization in Chrome OS).
Quote: "I must question though - say I have a tablet, would there be any need at all for me to get one of these mini-laptop thingies?"
Generally, no. Like I said, it fills a pretty specific niche for me. I have an iPad and an external Apple Wireless Keyboard that works fine for paper writing, and the clamshell form factor could be had with the right sort of case (although the good ones are expensive and a Chromebook wouldn't be much more).
But if you make use of a web service that doesn't respond well to mobile browsers and don't want a full-blown laptop wherever you are, the Chromebook offers a decent option as a secondary laptop.