Hi Thomas,
I've made a note of your request about promting the user to confirm unsubscribe. Next time I'm working on the Newsletter I will look into this. There is really a lot more left to polish that feature up, but for now other features have my attention.
suggestion: Some sites get you on the ~/Secure/UserProfile.aspx [Newletters subscription pane] to select beetween different subscriptions.
I'm not sure I understand what you are suggesting. In mojoPortal the user can already manage their newsletter subscriptions from the user profile page ~/Secure/UserProfile.aspx. There is a tab that lists all newsletters available to the user and allows them to subscribe or unsubscribe. However, if there are no newsletters available then the tab will not be shown.
Best,
Joe