If you are looking to host some online content for Symbian Phones or others, there is a requirement to work out the right MIME types that the phone / device is going to expect from your webserver. After spending 45 minutes trying to work out what they are, I am posting them here for your viewing and usage pleasures. These are only for content types that I've come across and required so far. If there are others you are aware of, please do post them in the comments to this blog.
You should just be able to drop these into a file ( eg. mobile-content.conf ) in the /etc/httpd/conf.d/ directory and reload apache server.