Is there a way to maintain a "Master List" for picklists that maintain the options across Objects? This way one could create multiple custom objects, each with the same picklist, but to avoid having to update each list individually, the "Master List" could be updated with the changes cascading out to each picklist. I know there are ways to accomplish this via visualforce and apex, but these solutions do not change the list itself so that a mobile user would see the updated list on his/her iPhone.

I guess I am asking if there is a way when a new record is added to a custom object to have an Apex Trigger fire that adds the record to a picklist value on one or more other custom objects?