If you use GIMP or are into making iDevice themes, or just plain ol' image minipulation, I implore you to check out
www.gimpknowhow.com. He (Sorry, I don't know the guys name) has quite a few tutorials about how to use GIMP on YouTube. Yesterday he opened his very own website. I know it is not proper to promote other forums, but this is a completely different type of forum. So I dont see us losing our 3 members (lol).
If you have always wanted to make your own iDevice theme and are new to any type of "photoshop" type Program, you will want to try this site. BTW, GIMP is 100% free. Get it here now....
www.gimp.org the official latest version is 2.6