Even thought the specifics don't seem to matter to you, I'll add a bit more detail. "The sticking point is that Microsoft decided the Core Java class libraries were insufficient for its needs. Now there's nothing wrong with extending things by subclassing and placing the new objects in a package outside of the java.* class hierarchy. But deciding to add about 50 methods and 50 fields into the classes within the java.awt, java.lang, and java.io packages, as Microsoft did, is extremely problematic. "Microsoft deceptively altered key classes and inserted them into their SDK," said Baratz, which results in developers thinking they are writing Java, when actually they are writing something that runs only on Internet Explorer.[1]

> They tried to screw Sun and take advantage of their economic misfortune.

I have some sympathy for Sun, but had Google asked for permission for Java on Mobile, Sun would have insisted on the abomination that was J2ME because that was their mobile strategy. I'll take Java 6.5 over J2ME any day

1. http://www.javaworld.com/article/2077055/soa/what-does-sun-s...

The created a whole new language that happens to be mostly based on Java, for a very specific target OS where Java wasn't even available before.

The familiarity with Java is merely a bonus and boost for the adoption of Android programming from Java devs. It's wasn't meant (and it isn't) a jab at taking the Java development market (which is was Microsoft did -- going after the same people using Sun's Java, and for the same environments they used it in).