I struggled for ages with WPMU to get it working so that I could host around 10 sites on one application.. Problem was WPMU needs you to install without the "www" in your domain - and this means you can;t have any of your domains displaying the www. prefix. I managed to get round this by modifying the domain mapping plugin to show the complete domainn with the http://www...
Then I discovered WP Hive and it is working great for me on 2 domains.
Now I have just been experimenting with WordPress version 3.0 (merged with WPMU) and it is working great BUT with the same limitation as mentioned above - you have to modify the domain-mapping plugin to get the www. domains to display. Then if you remove the www. it does not find the domain. I tried modifying the htaccess but could not make it work.
So I then decided to try WP Hive plugin on the 3.0 beta and it activates fine but when you click on the WP Hive in the admin area there is nothing displaying.
I think the users wanting to use WP Hive want it to manage multiple sites and probably want the flexibility to have www or non-www domains. However this so far does not seem to be possible with the WP 3.0.
So I think there is a place for using WP Hive for people like me. I think WP 3.0 is with network sites is more for people who want to use a WPMU style blog.
