Xmind - Xmind is a brainstorming and mind mapping application.
Hullabalu - Interactive stories for kids
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Tellast - Write stories collaboratively with others
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.
Hellosaurus - Interactive mobile shows kids can play, not just watch