I'd put a bunch of warnings on the back, like, 1. Amazon.com may delete books you purchased from this device without warning. 2. Amazon.com may, at its sole discresion, deny access to books you purchased. And so on. Fat chance of Engadget choosing that as one of their favorites.
Don't have a Kindle, don't want a Kindle. Couldn't care less about Jeff Bezos' epiphany, or the scar tissue he's going to use to build a better policy.
I have a laptop, a PDF reader, and books in PDF format. Jackbooted thugs may still be able to kick in the door and toss it all into the fire, but they can't do it from their air-conditioned offices in Washington.