Great for a Screensaver
I suppose its decent considering the early stages of the 3D-era for iPhones and iPod touches. Not the greatest graphics or textures, the atmosphere is too thick (looks unrealistic) and the sunlight passing through the atmosphere is a bit exaggerated. Despite people saying you can stop rotation, you cant. Its merely just a still camera view while only Earth is still rotating.
But hey, its free and makes a good screensaver while your iPod or iPhone is charging in its dock.
nmfc about
Earth 3D