Trout is a brainstorming utility which is loosely based on the mind mapping concept that allows you to rapidly associate ideas and help you organise your ideas in a non-linear way. - It could assist you with organising an event or solving a problem. - You are not restricted from cross linking your nodes and links may be labelled. - Your ideas can be categorised with color and icons and you can use images from your own Photo library to assist. - You can also work with your mind maps on the iPad version. - You can import and export Freemind format and export Graphviz format.