Thinking about a magnolia instance that could serve more than one public site one of the first needed feature is the ability to configure a different default page for each virualhost.
For example the same magnolia instance could be setup to serve:

• /site-one/home.html > when called using www.site-one.xxx
• /site-two/home.html -> when called using www.site-two.xxx

this could be easily implemented by creating a custom uri mapping (VirtualHostURIMapping) with a map of host->page configuration