Alternative approach to "multiple applications"... is this an issue?

[eluser]Jay Logan[/eluser]
I do something like this using sub-domains. Content is pulled from the database based on the sub-domain name. Different layouts can be shown if you store the layout name in the database also. Sub-domains are created from the admin area controller that hacks cPanel's sub-domain feature. I would imagine that it works for domains also. I actually have to create a site next week using multiple domains - same CI install. It's pretty simple.