Just found Haiku Deck, a presentation app for iPad. http://www.haikudeck.com. Basic app is free, additional themes available for $1.99 each. Image search is embedded within the app, making it easy to search for royalty-free, no-hassle images. Suggested keywords help refine your image search. Pretty interesting. Add a comment or link to your Haiku Deck if you’re already using the app!