I've broken down and ordered a Toshiba Thrive. Yesterday, after placing the order, we were near Best Buy for lunch, so I asked daisy_knotwise if she could run by there so I could run in and take a look at the physical machine that I'd just agreed to pay a bunch of money for. She said, "Sure!", so I did.
It looks pretty good. When mine gets here, we'll see how it works. :)