I want to save a user preference with a web part from the SPS portal
shared view. I can manage the property in code, so the toolbar isn't
necessary.

The problem I'm having is that I can't change a property with
Storage.Personal, or anything for that matter. Even if I
use "WebPart.SaveProperties = true" a WebPartPageUserException is
thrown.

Figuring my user is likly to be a Reader, a Contributor or
Administrator, I wonder if its reasonable to assume that I can even
store a personal value at the shared portal view.