glview = (GLSurfaceView)findViewById(R.id.glview);
glview.setEGLConfigChooser(8,8,8,8,16,0);
glview.setRenderer(new MyRenderer(this));
glview.getHolder().setFormat(PixelFormat.TRANSLUCENT);
// this made it work for me - works only from sdk level 6 on, though....
glview.setZOrderOnTop(true);