I didn't go so high-scale, but I picked up an (deep breath) enTourage Pocket eDGe Dualbook Android Tablet and e-Ink Reader. I'm in paper-grading mode, so I can't properly say how great or irritating it is, but here's what I've found:
1. Downloading from DCM with the browser is absolutely doable.
2. It didn't take me more than a few minutes (but irritating minutes nonetheless) to find ComiCat, which is pretty much like CDisplay with (seemingly) fewer options.
3. The comics look crisp enough on the screen that the smaller screen doesn't bother me much at all.
4. ComiCat doesn't do it, but software specifically for the eDGe has the neat feature of pushing stuff over to the eInk side of the machine.
5. With two screens, it's heavier than my Sony e-reader thingie and Google's Android Market doesn't want to have anything to do with it, so I need to jump through hoops (which I'm still working out) to install better stuff like the Flash player.
6. Not comic-related, but the speakers are probably the worst I've had in a computer since sound cards became available. I can barely hear music over, say, the bathroom sink when I'm getting ready for work.
Overall, I'm guessing the Thunderbolt is more fun, but for the price (I got it at daily-deal site Woot.com, for people who need to know such things), and for the uses I'm likely to put it through, it's not bad at all. Now I just need to figure out how to get the stupid "virtual phone" to work on my PC so Google will let me download free things...