I think the original plan for the DX line was to push school books for secondary and especially college classes and have a large screen on which to read them. However that plan was pretty much dead at birth. The big experiments Amazon was conducting at select colleges don't seem to have panned out. As a matter of fact I don't recall ever hearing a word as to how those trial runs even turned out. And with the current price of a Kindle DXG at $380 USD, and with their firmware at least half a generation behind the Kindle 3, I doubt they sell many of them. I suspect they might keep the current model for a while but I would be really surprised if they released an updated version.