But, the UI is pretty slick, and so far it seems to be useful. It can be
thought of as a graphical way to create a web and hard disk favorites list
with personal annotation of each page. I plan on using it for collecting
snippets of information while writing my survey paper. The feature which
animates your graph is fun.
Anyway, there's a free 30-day trial, and it doesn't muck with your OS when
you install it, so it's relatively pain-free to give it a whirl.
Oh, yeah, they claim the tool can be used to model the relationships in your
brain, hence the name.