Notice it's not such a big plan. 170 work-items, when each item measures in hours, is about two weeks' worth of work for a small team. Yet when you try to visualize it all in one screen you get a mess. Granted, Freemind isn't exactly designed to do this, and there are other tools that do a slightly better job at laying out graphs. But these tools don't allow you to write down and edit your plan as easily as mind-mapping tools like Freemind do.
The same plan in MS Project looks like this:
And what if the plan had 1700 steps, instead of 170? Both of these tools would have failed spectacularly.
Now here's the same plan in Gigantt. Click any item to zoom into it, or use the mouse wheel. By zooming in on each level of the plan you maintain your 2D orientation and you're not lost in the details.
What's missing? A lot. Obviously, it still doesn't show connecting lines between items. And of course it's read-only. But with time I'm going to add the ability to edit the graph as conveniently as you would a mind-map. But that's all in future showcases. Right now you can just have fun zooming around this skeleton of a Gigantt plan and hopefully be impressed by how difficult it is to rob three casinos at once.