Solar Walk 3D Model ★★★★★ ($2.99 / App Store) for the iPhone and iPad is a phenomenal educational (and entertaining) app of our Solar System in great detail. It is a highly interactive letting you zoom in and zoom out at any angle from the entire Milky Way Galaxy to as close to as all the planets, moons and satellites our our own system. Everything is also positioned with actual time and clock. So adjusting the date will position the planets and other bodies to where they actually were at the time or will be in the future.
