You can find the beta1 demo source inside the jme3 svn trunk at: src/android/jme3test.android
Its not compileable from that location, you have to copy at least DemoMainActivity and Demo*
into your own android project. An AndroidManifest.xml is provided, too.
The Test* classes have been modified (slightly) by me to make them work on android.
Good Luck and have Fun !