3) Fix yourself and your workflow rather than just consuming more hardware. Multiple monitors are rarely needed; especially for portable computing (which this LCD is targeted at).
Agree. I've got much more powerful machines than this ageing D620 I use most of the time, but I seldom do much that really requires 2 screens. My most powerful desktop only gets turned on occasionally. I spent money and time on a dual-screen (with room for a 3rd) rig for it for gaming only to realise that I so seldom turn it on for anything other than to back up the laptop's data.
Even when I was working in IT I've preferred the laptop to take away somewhere quiet and with less tech around, not more, to let me work on code, content or circuitry. I can leave any power-work for later. Hell, I now own a tablet which I use for a lot of stuff where I'll consume rather than write (a few years back I would never have gone with a tablet till someone gave me one and I saw their usefulness with a slight change in thinking).
That said, a larger screen would be nice at times, and I did use a 17" laptop till, in classic HP fashion, it cooked itself (could take 2 hdd's as well which I really miss - must get me a DVD-bay HDD thingamy so I can have a boot SSD and larger data HDD). Where I've done any real graphic work it's been nice to split stuff up a bit (one of the things I like with GIMP and moveable toolboxes)
I do enjoy with Linux where you can hover over a background program and the scroll wheel will scroll the text - great for having a tutorial/help page in the background and whatever I'm doing in the foreground, so I can just scroll if/as needed.
This screen at least is light/thin enough for easy transport, but I agree with El Reg that it could use it's own battery. Otherwise I am going to need to be near a power source, and if I am near that I might as well carry a normal screen with me. I have a triple-laptop bag (yes it could take 3 laptops of at least 15" each, plus chargers for each) that would easily take a couple of screens and dock, and isn't too much hassle to carry loaded like that (for short distances).
Oh, and I do at times to a bit of app switching with alt-tab. Might get a bit annoying when I have a few things running, but for the most part even my aging lazy mind finds it easy enough to use.