Just resized, cropped and fixed the colours of the new wallpaper that's been bundled with OSX Mountain Lion. Fixed the colours as in; I've made them more vibrant for the Retina display.
There are 2 versions: 1 for the lockscreen with the added bottom gradient (It gets removed from the lockscreen for some reason when you use a different wallpaper on the homescreen). And it also contains one for the homescreen which has been blurred to mimic the Launchpad of OSX.
Credits go out to Apple for making the original image.Update 1:
Remade the wallpaper with a sharper version of the original Update 2:
Added another version which is more vibrant. The previous version is also cropped in a different way so that the center of the galaxy is centered on the iPhone screen.Update 3:
Desktop version added. The resolution of this wallpaper is the same as the original wallpaper which is 3200x2000. I know that this is really large but this way people can resize and crop it to their own liking.Update 4:
Final version. Removed the very first version of the wallpaper and recropped the iPhone version.Click "Download File" on the right to get a package with both the lockscreen and homescreen wallpaper