[lmz]

4. It's not that unique, is it? I used KDE's FileLight[1][2] some years ago and it had that same visualization.

[1]: http://www.methylblue.com/filelight/

[2]: http://kde-apps.org/content/show.php?content=9887

[burgerbrain]

Exactly, and FileLight was hardly the first to have it either. This sort of disk usage visualization is quite old.

[smashing]

Every time I see the wood interface, I think of Radio Shack and Tandy circa 1970's.

[Derbasti]

Only of course, Daisy Disk actually animates beautifully. Have you ever seen it in action? Its animations really bring it to life.