Originally Posted by Daveoc64
I expect the Kindle Keyboard (3rd generation Kindle) to be supported purely because it is the most widely adopted model out there.
If you added up all of the Kindle 1, 2, DX, 4 (no keyboard) and Kindle Touch devices out there I'm sure that the Kindle Keyboard would outnumber them all.
...for the next year at least.
(They're going to sell a zillion base K4s over the next year.)
Amazon doesn't have to convince consumers, but rather publishers, and the best argument they can brandish is the install base: millions of dedicated readers, tablets, and apps. And the quicker they get the enhanced content, the easier it'll be to sell the new readers.
So yes; odds are K3 will get upgraded, odds are K2 won't. DX and DXG? Unclear.