I've been trying to add my site for 6 months now. I've submitted once every 2 months. I think it's worth being added, but I'm ofcourse a little bit biased /images/icons/wink.gif
http://dmoz.org/Business/Industries/Telecommunications/Wireless/Equipment/Phones/Ringtones/
http://dmoz.org/Business/Industries/Telecommunications/Wireless/Equipment/Phones/Ringtones/