Today I discovered a tool called OrgPad which has a lot of potential. Unlike all the major players in the mindmap space right now, each node isn't just a heading, but an actual piece of content, with a title. Each node can be expanded or collapsed so you can focus on what you want to while maintaining context.
It's also got an amazing interface that's incredibly polished.
I've also just discovered TheBrain, which is also a delightful mindmap tool, but the cost is prohibitive at around $20/month just to sync across devices, the interface isn't as slick as mindmeister or xmind, in fact it looks ancient. But it's very powerful and feels really good to use. It also has the benefit of making notes a first class object instead of a tiny icon on a node which the more popular mindmaps do. But the win goes to org mode for being superior in most ways, at a fraction of the cost.