AppLaunchpad - Create free beautiful screenshots for App store/Google play
Visual Understanding Environment - Visual Understanding Environment (VUE) is a mind-mapping and concept-mapping tool.
iOS Jetpack - Beautiful easy-to-use screenshot templates for App Store
FreeMind - FreeMind is a premier free mind-mapping software written in Java.
Smartmockups - Create stunning product mockups, easily and online.
Flying Logic - Highly visual software for planning support used by strategists, process improvement specialists, teachers, and writers. Windows, Mac OS X, and Linux.