So much for the 'can't create content on your iPad' naysayers. Flowboard is a well thought out, free app that lets you create presentations with text, video, or graphics. I could see this being very useful for teachers, artists, photographers, people in PR and students.
You can add videos, PDF files, cloud content, and even search Google Images online, or connect to SkyDrive, Dropbox, and Instagram for content. The app is template driven, and there are many professional-looking templates to get you started. Each template can be modified to taste.
All your drafts can be saved to the app's own cloud servers, and anything you create can be shared via the web, Facebook, Twitter or Email.