Two I'm interested in, Samsung Galaxy 7.7 and "Note", do not seem to be on the market yet. Especially the latter 5.2 inch device with super-high-rez screen seems promising as portable ereader. The iPhone 4(S) with similar screen is a surprisingly good ereader, but a bit on the wee side at 3.5 inches.
9-inch one for the same price. That's very early in the game. Of course it's Chinese discount quality, but still, pretty amazing, it does run Android apps.
I think it shows us that very soon tablets of decent quality will be cheap enough that the Digital Divide will be all but erased on this planet, and global education and communication will belong to the Third World also. Experience and experiments have shown that pretty uneducated children in poor countries speed up their education to a frankly uncanny degree when they get their hands on things like these. Even without instruction, they take to it like ducks to water.
And it's my personal belief that education barriers are much more important than food and health issues in holding back poor areas on the planet, since we've seen many times that people really start changing things themselves when they get the chance, and the changes are much more lasting than if they come from outside. (I have donated to WorldReader.org)