That's right, everyone-whose-favorite-image-manipulating-program-isn't-photoshop's favorite image manipulating program is looking for a new splash screen!
GIMP (GNU Image Manipulating Program) is coming out with version 2.2, and they're holding a contest for the new splash screen. There have been a TON of entries (645 so far) and a large number of really good ones too.
If you use GIMP, be sure to vote on the new splash screen here!:
http://www.mukund.org/temp/gimp/judge/