I came across this resource a little while ago and it's actually pretty cool. Biggerplate dot com is a site that collects mind maps and distributes them to their members. I think the membership was free and they have all sorts of mind maps to get your juices flowing. The first one I downloaded was getting to yes, which was based off of the book with the same title.
I bought their app that they have in the app store called Ithoughts. And the reason I purchased that app is that you can download mindmaps from this site directly to your phone and it reads all of the other major mind map companies formats. Kind of an all in one tool.
Just thought I would share that since I just downloaded another mindmap.