Change Vision, Inc. in Japan, has released a trial version of JUDE/Think!, a product for mind mapping.
Their main product, JUDE/Professional is a UML modelling tool that can make mind maps as well. It is reasonably priced for such a tool, but if you want it just for mind mapping its cost looks on the high side.
Now they’re aiming to overcome this problem by releasing a limited version that does only mind mapping.
It’s only available for purchase in Japan at present, but they say it is to be launched for worldwide sale later. You can download it for a 20-day trial (Windows/Mac), and they want your feedback. More details at www.mind-mapping.org