Tired of the same old flip-through-your-iPhone-pictures routine? Moblyng to the rescue!
Available as a free download from the App Store, Moblyng improves on the iPhone's built-in photo-managing tool by easily creating and modifying slide shows from either new or existing photos. There are five slide show themes (including "Antique," which converts everything to black and white), all with variable speeds and changeable skins.
The app also plays nice with MySpace and Friendster for sharing shows; however, the current version of the app crashes when you attempt to share with another phone. (Non-iPhones can try out a mobile web version at http://m.moblyng.com/, which Moblyng claims has already had one million page hits in its first month of operation.)