The patents are listed here: http://www.h-online.com/open/news/it...e-1102506.html

They don't refer to mobile devices in the patents.

The patent grant is here: http://java.sun.com/javase/6/jdk-6u21-doc-license.txt

It doesn't mention mobile devices either, but you have to pass the TCK to redistribute, and the TCK doesn't allow implementations for mobile devices. Where exactly that leaves OpenJDK, since it is Oracle's own project, I don't know.