Mike Salway posted a cool animation of images he took of Jupiter, Ganymede, and Io over at the Cloudy Nights forum. These images were acquired on March 19. You can see a rotating Io, Io on the near-side of Jupiter orbiting off to the left, and Ganymede on the far-side of Jupiter orbiting off to the right. Note that you can see Ganymede emerging from an eclipse in the first frame.
Definitely worth checking out.
Link: Jupiter + GRS + Ganymede + Io + Animation [www.cloudynights.com]