In the "user profile" settings group, there are 2 items related to the new Profile Portal... is that it? Am I missing another section of settings somewhere related to the portal?

I would like to modify the "default" selection of things like notifications for new comments/friends, etc... so either I'm missing it somewhere, or this is a request to have that added in. :)

Basically you are saying set the default for all users (from the Admin CP)?

Yes, similar to how you can set the "default" sorting options for topics, or whatever... I would like to modify the "default" behavior for all the settings you can modify when you click on the Settings tab in the profile portal...