I'm trying to evaluate my strategy for doing some custom User Profile related pages. I'd like to reuse my main master page and use a combination of web parts, users controls and page layouts to get all of the functionality I need. I've seen in central admin, for the user profile service there is a "Configure Trusted Host Locations". I've done a quick test and seen that I can point this to basically anywhere. This would allow me to point it to my main site where I have my custom User Profile related pages. But what I don't know is if this will cause any problems anywhere else since the location I'm pointing to isn't a real "My Site host".
If anyone has any information on this, I'd appreciate it, as I haven't been able to find anything through normal searching.