Want to share multiple photos at a time? Apparently a nice collage maker can help you. Take a look at PhotoString, maybe the photo app can meet your requirements.
PhotoString is an easy-to-use photo collage app developed by SlyFairy, and designed for iPhone and iPod touch. The iPhone app features intuitive, easy-to-use user interface, just tapping one of the preloaded four collage styles, you can easily start your creation. You can import photos from your photo library or take photos directly in the app for your photo collage, and the integrated 57 elegant fonts and 12 beautiful background colors keep your creativity unstoppable. After finishing your masterpieces, you can save them in up to 1440 pixels width, or share them with friends via Email, Facebook, Twitter, Tumblr and more.
PhotoString with a size of 1.3 MB is compatible with iPhone, iPod touch and iPad running iOS 4.0 or later. The iPhone app is free for a limited time at present. If you’re interested, jump to App Store for more details.