The original Kindle Touch was called many things in this forum before we settled on K5 as a standard nickname for support and firmware naming conventions. That became confused when the KT2 came out.
Our nicknames all made a lot of sense at the time, but if we followed Amazon marketting naming conventions, we would soon be at "All New Kindle. 47th edition". Instead we attempt to use names that actually match the hardware and firmware major versions to some degree.
It is amazon who dropped the ball on firmware versions when they made the kindle fire use firmware 6.x.x, so all new eink kindles may forever be 5.x.x.x.x.x.x, requiring us to use even more hardware-specific names for newer models.
For example, because a reasonably common abbreviationg for "oasis" is "OA", we nicnamed Kindle Oasis "KOA" (
campground edition LOL).
As it turns out,
knc1 is the leading authority on kindle nickname conventions in our forum. Perhaps he will share the history lesson he posted elsewhere.