Oovium Mind Mapper is an iPad-iPhone App that permits to create bubble mindmaps. It is usefull as a personal white board.
Oovium Mind Mapper allows you to place freely nodes on a field (the "aether") and designate directional links between them.
Each node can have multiple inputs and outputs. In the sample below, it took me only a few minutes to create this mindmap about the top UK Airports. It was exported as an image. You can also save your mindmaps on Dropbox.
Requirements: compatible with iPhone, iPod touch, and iPad. Requires iOS 3.1 or later
My Opinion: I liked
The flexible branches and the free positioning of the nodes. I would suggest
to add more controls for the visual aspects of the nodes and branches, to implement an icon library and to allow more exports options.
Emoji to insert symbols into the nodes.