Here's an old (but real!) quote from Sun that I used in that post to demonstrate the then current state of affairs:
Due to significant popularity within the Java developer community, the development kit has reverted back to the name "JDK" from "Java 2 SDK" (or "J2SDK"), and the runtime environment has reverted back to "JRE" from "J2RE". Notice that "JDK" stands for "J2SE Development Kit". The name "Java Development Kit" has not been used since 1.1, prior to the advent of J2EE and J2ME.
Well, they're at it again, but this time making the "Java naming architecture" (as they call it) a little easier.
Henceforth, the legacy "2" will drop from the different editions, so J2EE becomes JEE, J2SE becomes JSE, and J2ME becomes JME.
Bravo. Viva simplicity. Viva common sense.
PS - Bobby Woolf and Ted Neward wrote about this as well.