I just installed the Flash based tag cloud WordPress plugin WP-Cumulus of Roy Tanck and integrated it into the tag-cosmos-page. That 3D-tag-cloud is really great! It functions properly and is easy to configure.
The only downer is Flash … but Roy can’t help it 😉 … the iPhone still does not know what to do with Flash and also search engines stop and do not follow links within swf files. But nevertheless – the 3D-tagcloud is really fun to use … just look here, so you know what I’m talking about!
Sources: WP-Cumuls at WordPress.org