Here's where I turn into a Luddite again. But it's not primarily because I'm a Luddite that I don't think I'll be making much use of Mindmeister. More importantly, I am a text-not-image person and I don't think visually. I never make spider diagrams; I make lists, and only rarely even colour-code them. Mindmapping just doesn't suit my learning style, and I doubt this is going to change just because I can now draw the diagrams online.
In any case, I am not yet convinced of the advantages of drawing mindmaps electronically. If you want to share them with friends and colleagues, that's another matter: the benefits of sharing things online are obvious. But if you're working by yourself -- either because it's an independent project, or because you're doing some preliminary work prior to the shareable part of the task -- is Mindmeister really so much better than pen and paper?
Two Years Later...
8 months ago