I love Line Camera and have been using it for a while -- well, ever since LeAnn Suchy's session at MLA! :) I like the fun effects and borders and I especially like the stamps. I just wish there were more free ones.
I decided to try Color Splurge on my iPad and liked that one as well, though I don't care much for the ads. I will be downloading that one to my cell phone and can't wait to try it out on my adorable niece.
Does anyone know of a good, free app that lets you make a collage out of multiple pictures?