You could have done the something with a simple php or redirect leading from your index of a domain or subdomain to you rss/xml feed... So when someone types in your domain name they will be redirected to your xml feed(s).
Get yourself a sub domain of your main site and place this within your new subdomain index page.
<meta http-equiv="Refresh" content="0;url=http://www.your_domain.com/rss.xml">
or
<meta http-equiv="Refresh" content="0;url=http://a_subdomain_you_like.your_domain.com/rss.xml">
or
create a .htaccess file and place this within it
redirect
http://a_subdomain_you_like.your_domain.com/index.html http://a_subdomain_you_like.your_domain.com/rss.xml
If anyone is interested in doing so for themselves...
.