Another interesting alternative to the iPad or Kindle. I'm not sure it's ready for prime time though - it sounds like it's slow, heavy, limited battery life, and no apps. Other than that, it looks great :-)
I'd really like to go for something more "open" than the iPad or Kindle, but the problem is the apps and books. No one has all the apps like Apple, or the books like Amazon.
If we can move toward HTML 5 apps and get away from DRM, then we'll have a lot more freedom with hardware.
Which still leaves the question whether anyone can match Apple in terms of design and user experience. Even people who promote Android admit that it's not as polished as Apple. The software might get there eventually - Linux (e.g. the latest Ubuntu) is starting to rival Windows and OS X. But Apple's hardware design and polish is tough to match.