BitNami is the thing I was always looking for. It packages the server and the application(Drupal, Wordpress, phpBB etc.)
Well, I know how to set up Apache + PHP + MySQL... by using XAMPP. Sometimes I just want to test Redmine, but start configuring Ruby? I believe I got enough on "am I suppose to download Ruby or Rails?"
Bitnami's nice installation package equals to extremely fast set up. Almost nothing have to be done except download and install. There is no way Bitnami can be easier.
Except allow us to create our own Linux distro (online with few clicks) bundles with the choice of http (or other kind of) server (Apache or Lighttpd), choice of database, choice of script language. It dynamically creates the package and we can download them or share them. It would be even better if they work with some computer manufacture like Dell, so the package comes installed on the server.