Initial idea how to get screenshots in tests, very handy in Arquillian Droidium environment.

ArquillianScreenShooterTestCase.java

@RunWith(Arquillian.class)
// when this annotation is omitted, images will be saved into 
// default location, like target/screenshots
@SaveScreenShotsTo("target/my-screenshots/ArquillianScreenShooterTestCase/")
// when no @TakeScreenShots are specified on method, this one will be used by default
@TakeScreenShots(BeforeAsserts.class)
public class ArquillianScreenShooterTestCase {

    @Drone WebDriver driver

    @Deployment
    public static Archive<?> getDeployment() {
        // ShrinkWrap gets deployment
    }

    /**
     * Screenshots will be taken and put into @SaveScreenShotsTo in some format
     * (e.g.) some target/screenshots/SomeTestCase/test01/screenshot-#.png
     * where # is a placeholder for a number of screenshot taken in the method.
     *
     * Screenshots will be taken before and after the calling of method from Assert class.
     */
    @Test
    @TakeScreenShots({BeforeAssert.class, AfterAssert.class})
    public void test01() {
        Assert.assertTrue("some test");
    }

    /**
     * Just before asserts, annotation of @SaveScreenShotsTo overrides
     * class annotation when specified.
     *
     */
    @Test
    @TakeScreenShots(BeforeAssert.class)
    @SaveScreenShotsTo("target/someOtherLocation/")
    public void test02() {
        Assert.assertFalse("some test");
    }
}

I'd make it @TakeScreenShots instead of @GetScreenShots. But for everything else +1!