Thanks to Oracle's lawyers, it's necessary to observe that Android doesn't run "Java", it runs Dalvik.
Regardless, the Android platform. while more extensive than JME, is still not a 100% implementation of the desktop edition of Java, much less the desktop/enterprise JDK.
It might make an amusing project, but personally, I'd rather see Tomcat on one of the "wall-wart" computers and leave the Galaxy for browsing.
Although I'll admit I'd be tickled if I could run OS/MVS on my cellphone (Project Hercules).