I got a Nook Simple Touch and tried out the rooting. They were on sale for $79 ($20 discount) for Mother's Day. The price propel ably makes it the cheapest tablet on the market.
The rooting was straightforward. The most annoying thing was that it took Android Market about 12 hours to be activated.
Apps like NYTimes and several Chinese magazine apps all work. It's a great cheap little Android tablet for those who like eink and uses a tablet primarily for reading. Another great thing is that it's much lighter than a normal tablet. With a 6 inch screen, it weighs about the same as a phone, which makes it much better for reading.
Would it be very hard to get Pleco working on Android 2.1? Maybe a stripped down version with just the reader, dictionary, and flashcard adding function (but not the testing system)?
Mike, I would recommend getting one of these to play around at least.