Originally Posted by jswinden
Since you enjoy hacking, most of the developer folks on this forum prefer to refer to a Kindle model by referencing the firmware number, as in K + #. Since the new Kindle you bought runs FW 4.x.x, they refer to it as K4. A model from last year also runs FW 4.x.x, so perhaps you could call this one K4B because it is black and last year's model K4S because it was silver.
Sweet. That's the kind of answer I was looking for. So I (will) have a K4, but I won't be surprised if I see variants of that name.