Hi everyone, sorry to barge in at this (late) stage.
The activity on this thread tells me that this is a popular feature with many. I for one am a bit apprehensive about how this will affect me.
We have only one server and we don't allow the users to change it. Most of the settings are locked from the admin settings page. I hope there will be an option in the admin settings to disable the profile selection and profile addition completely.
For me it would be more useful to show the currently logged in user, on clicking the round button.