If you just can't hold out a few months for the Galaxy S4 then i feel your pain. Yesterday the Galaxy S4's system dump was made available. It was quickly torn down, and all the goodies were removed. One of the easiest things you can do to make your phone feel more like an S4 is to add an S4 wallpaper to the device. Lucky for you those are all available for download. There are 7 wallpapers. There were also some new ringtones pulled from the system dump. I generally stay clear of these kinds of things because I prefer to enjoy them the day I unbox the new device, however some of you may not be so patient. Grab the files from the source links below.
Via SamMobile Wallpapers, Ringtones