I've been playing around with some of Adobe's iPad apps. There are quite a few of them in the App Store and they're all free. And they're actually pretty good.
Add voice, text, icons and pictures. And then a few pages. Export or share. And you're done. One of the quickest, easiest ways to create videos.
Create pretty video synchronized to a soundtrack.
Collect ideas from almost anywhere and present easily. Add text, images, websites and even import from Pinterest, Instagram and Dropbox.
Turn photos into faux art.
Cut, mix and blend images.
A nice little sketching app. It's crazy what some people can do with it. My sketches look like a three-year-old's crayon drawings. (See also: Adobe Illustrator Draw)